66 results on '"Rebecca L. Jackson"'
Search Results
2. CMIP6 projections of ocean warming and the impact on dimethylsulfide emissions from the Great Barrier Reef, Australia
- Author
-
Rebecca L. Jackson, Matthew T. Woodhouse, Albert J. Gabric, and Roger A. Cropp
- Subjects
coral reef ,dimethylsulfide (DMS) ,sea surface temperature ,climate change ,CMIP6 ,Science ,General. Including nature conservation, geographical distribution ,QH1-199.5 - Abstract
Coral reefs are important regional sources of biogenic sulfur to the tropical marine atmosphere, through stress-induced emissions of dimethylsulfide (DMS). Recent estimates suggest that the Great Barrier Reef (GBR), Australia emits 0.02-0.05 Tg yr-1 of DMS (equivalent to 0.010-0.026 Tg yr-1 S), with potential implications for local aerosol-cloud processes. However, the impact of ocean warming on DMS emissions from coral reefs remains uncertain, complicating efforts to improve the representation of coral reefs in DMS climatologies and climate models. We investigate the influence of predicted changes in sea surface temperature (SST), photosynthetically active radiation (PAR) and wind speed on contemporary DMS emissions from the GBR using model output from the Coupled Model Intercomparison Project Phase 6 (CMIP6). A multiple linear regression is used to calculate seawater surface DMS (DMSw) concentration in the GBR in a contemporary (2001-2020) and end-of-century (2081-2100) scenario, as simulated by CMIP6 models under a SSP2-4.5 and SSP5-8.5 Shared Socioeconomic Pathway. By the end of this century, a 1.5-3.0°C rise in annual mean SST and a 1.1-1.7 mol m-2 d-1 increase in PAR could increase DMSw concentration in the GBR by 9.2-14.5%, leading to an increase in DMS flux of 9.5-14.3%. Previous model studies have suggested that the aerosol system has a low sensitivity to relatively large changes in coral reef-derived DMS. Therefore, the predicted change in contemporary DMS emissions is unlikely to influence the regional atmosphere. Further research is needed to understand the combined effects of temperature, light, pH, salinity and ecosystem structure on DMS production in coral reefs to better predict potential changes in emissions. Nevertheless, the findings provide insight into how predicted ocean warming may affect present-day DMS emissions and the source-strength of the GBR to the atmospheric sulfur budget.
- Published
- 2022
- Full Text
- View/download PDF
3. Modelling the influence of coral-reef-derived dimethylsulfide on the atmosphere of the Great Barrier Reef, Australia
- Author
-
Rebecca L. Jackson, Matthew T. Woodhouse, Albert J. Gabric, Roger A. Cropp, Hilton B. Swan, Elisabeth S. M. Deschaseaux, and Haydn Trounce
- Subjects
coral reef ,dimethylsulfide (DMS) ,sulfate ,aerosol ,ACCESS ,Science ,General. Including nature conservation, geographical distribution ,QH1-199.5 - Abstract
Marine dimethylsulfide (DMS) is an important source of natural sulfur to the atmosphere, with potential implications for the Earth’s radiative balance. Coral reefs are important regional sources of DMS, yet their contribution is not accounted for in global DMS climatologies or in model simulations. This study accounts for coral-reef-derived DMS and investigates its influence on the atmosphere of the Great Barrier Reef (GBR), Australia, using the Australian Community Climate and Earth System Simulator Atmospheric Model version 2 (ACCESS-AM2). A climatology of seawater surface DMS (DMSw) concentration in the GBR and an estimate of direct coral-to-air DMS flux during coral exposure to air at low tide are incorporated into the model, increasing DMS emissions from the GBR region by 0.02 Tg yr-1. Inclusion of coral-reef-derived DMS increased annual mean atmospheric DMS concentration over north-eastern Australia by 29%, contributing to an increase in gas-phase sulfate aerosol precursors of up to 18% over the GBR. The findings suggest that the GBR is an important regional source of atmospheric sulfur, with the potential to influence local-scale aerosol-cloud processes. However, no influence on sulfate aerosol mass or number concentration was detected, even with a reduction in anthropogenic sulfur dioxide emissions, indicating that DMS may not significantly influence the regional atmosphere at monthly, annual or large spatial scales. Further research is needed to improve the representation of coral-reef-derived DMS in climate models and determine its influence on local, sub-daily aerosol-cloud processes, for which observational studies suggest that DMS may play a more important role.
- Published
- 2022
- Full Text
- View/download PDF
4. Multiple dimensions underlying the functional organization of the language network
- Author
-
Victoria J. Hodgson, Matthew A. Lambon Ralph, and Rebecca L. Jackson
- Subjects
Semantics ,Phonology ,Meta-analysis ,Control ,Language ,Multiple Demand Network ,Neurosciences. Biological psychiatry. Neuropsychiatry ,RC321-571 - Abstract
Understanding the different neural networks that support human language is an ongoing challenge for cognitive neuroscience. Which divisions are capable of distinguishing the functional significance of regions across the language network? A key separation between semantic cognition and phonological processing was highlighted in early meta-analyses, yet these seminal works did not formally test this proposition. Moreover, organization by domain is not the only possibility. Regions may be organized by the type of process performed, as in the separation between representation and control processes proposed within the Controlled Semantic Cognition framework. The importance of these factors was assessed in a series of activation likelihood estimation meta-analyses that investigated which regions of the language network are consistently recruited for semantic and phonological domains, and for representation and control processes. Whilst semantic and phonological processing consistently recruit many overlapping regions, they can be dissociated (by differential involvement of bilateral anterior temporal lobes, precentral gyrus and superior temporal gyri) only when using both formal analysis methods and sufficient data. Both semantic and phonological regions are further dissociable into control and representation regions, highlighting this as an additional, distinct dimension on which the language network is functionally organized. Furthermore, some of these control regions overlap with multiple-demand network regions critical for control beyond the language domain, suggesting the relative level of domain-specificity is also informative. Multiple, distinct dimensions are critical to understand the role of language regions. Here we present a proposal as to the core principles underpinning the functional organization of the language network.
- Published
- 2021
- Full Text
- View/download PDF
5. The neural correlates of semantic control revisited
- Author
-
Rebecca L. Jackson
- Subjects
Semantic cognition ,Control ,ALE meta-analysis ,Executive processing ,Semantic control ,Neurosciences. Biological psychiatry. Neuropsychiatry ,RC321-571 - Abstract
Semantic control, the ability to selectively access and manipulate meaningful information on the basis of context demands, is a critical component of semantic cognition. The precise neural correlates of semantic control are disputed, with particular debate surrounding parietal involvement, the spatial extent of the posterior temporal contribution and network lateralisation. Here semantic control is revisited, utilising improved analysis techniques and a decade of additional data to refine our understanding of the network. A meta-analysis of 925 peaks over 126 contrasts illuminated a left-focused network consisting of inferior frontal gyrus, posterior middle temporal gyrus, posterior inferior temporal gyrus and dorsomedial prefrontal cortex. This extended the temporal region implicated, and found no parietal involvement. Although left-lateralised overall, relative lateralisation varied across the implicated regions. Supporting analyses confirmed the multimodal nature of the semantic control network and situated it within the wider set of regions implicated in semantic cognition.
- Published
- 2021
- Full Text
- View/download PDF
6. Coral reefs as a source of climate-active aerosols
- Author
-
Rebecca L. Jackson, Albert J. Gabric, and Roger Cropp
- Subjects
Coral reefs ,Biogenic aerosol ,Dimethylsulfide ,Coral bleaching ,Medicine ,Biology (General) ,QH301-705.5 - Abstract
We review the evidence for bio-regulation by coral reefs of local climate through stress-induced emissions of aerosol precursors, such as dimethylsulfide. This is an issue that goes to the core of the coral ecosystem’s ability to maintain homeostasis in the face of increasing climate change impacts and other anthropogenic pressures. We examine this through an analysis of data on aerosol emissions by corals of the Great Barrier Reef, Australia. We focus on the relationship with local stressors, such as surface irradiance levels and sea surface temperature, both before and after notable coral bleaching events. We conclude that coral reefs may be able to regulate their exposure to environmental stressors through modification of the optical properties of the atmosphere, however this ability may be impaired as climate change intensifies.
- Published
- 2020
- Full Text
- View/download PDF
7. Positive Effects of a Developmental Period Without Control.
- Author
-
Rebecca L. Jackson, Matthew A. Lambon Ralph, and Timothy T. Rogers
- Published
- 2020
8. Understanding interactions amongst cognitive control, learning and representation.
- Author
-
Sebastian Musslick, Abigail Novick Hoskin, Taylor W. Webb, Steven Frankland, Jonathan D. Cohen 0003, Rebecca L. Jackson, Matthew A. Lambon Ralph, Lang Chen, Timothy T. Rogers, Randall C. O'Reilly, and Alexander A. Petrov
- Published
- 2019
9. A network-level test of the role of the co-activated default mode network in episodic recall and social cognition
- Author
-
Richard J. Binney, Grace E. Rice, Rebecca L. Jackson, Gina F. Humphreys, Matthew A. Lambon Ralph, Lambon Ralph, Matthew [0000-0001-5907-2488], and Apollo - University of Cambridge Repository
- Subjects
Social Cognition ,Brain Mapping ,Recall ,Episodic memory ,Cognitive Neuroscience ,Univariate ,Brain ,Experimental and Cognitive Psychology ,Independent component analysis ,Task (project management) ,Neuropsychology and Physiological Psychology ,Social cognition ,Theory of mind ,Mental Recall ,Default mode network ,Humans ,Psychology ,Cognitive psychology ,Resting-state networks - Abstract
Resting-state network research is extremely influential, yet the functions of many networks remain unknown. In part, this is due to typical (e.g., univariate) analyses testing the function of individual regions and not the full set of co-activated regions that form a network. Connectivity is dynamic and the function of a region may change based on its current connections. Therefore, determining the function of a network requires assessment at the network-level. Yet popular theories implicating the default mode network (DMN) in episodic memory and social cognition, rest principally upon analyses performed at the level of individual brain regions. Here we use independent component analysis to formally test the role of the DMN in episodic and social processing at the network level. As well as an episodic retrieval task, two independent datasets were employed to assess DMN function across the breadth of social cognition; a person knowledge judgement and a theory of mind task. Each task dataset was separated into networks of co-activated regions. In each, the co-activated DMN, was identified through comparison to an a priori template and its relation to the task model assessed. This co-activated DMN did not show greater activity in episodic or social tasks than high-level baseline conditions. Thus, no evidence was found to support hypotheses that the co-activated DMN is involved in explicit episodic or social processing tasks at a network-level. The networks associated with these processes are described. Implications for prior univariate findings and the functional significance of the co-activated DMN are considered.
- Published
- 2023
10. Graded functional changes in ATL reflect both semantic content and process
- Author
-
Katya Krieger-Redwood, Xiuyi Wang, Nicholas Souter, Tirso Rene del Jesus Gonzalez Alam, Jonathan Smallwood, Rebecca L. Jackson, and Elizabeth Jefferies
- Abstract
Patients with semantic dementia have degraded conceptual knowledge, accompanied by atrophy of ATL; however, the organisation of ATL is less well-understood, due to signal loss/distortions in ATL in fMRI. We used MBME acquisition and the HCPex-Glasser parcellation to investigate how parcels within ATL respond across different types of semantic content (emotional, contextual, associative, feature) in generative and matching tasks. Areas closer to auditory cortex activated more for associative and emotion-based semantics. An intermediate area nearer to visual cortex was more multi-modal, with equal recruitment across judgments (associative/feature) and generation (emotion/context). The parcel closest to vision activated more for context than emotion. Recruitment was stronger for initial generation than switching to a second association, regardless of content, across ATL parcels. Left ATL activated more than right ATL across content and process (except aSTG). Our results are consistent with the graded-hub-perspective, showing graded transitions from both dorsal and medial ATL towards vATL.
- Published
- 2023
11. Subregions of DLPFC Display Graded yet Distinct Structural and Functional Connectivity
- Author
-
Rebecca L. Jackson, Lambon Ralph M, JeYoung Jung, Jung, JeYoung [0000-0003-3739-7331], Jackson, Rebecca L [0000-0001-5339-0266], and Apollo - University of Cambridge Repository
- Subjects
Male ,tractography ,Prefrontal Cortex ,Biology ,behavioral disciplines and activities ,Executive Function ,mental disorders ,medicine ,Humans ,structural connectivity ,Default mode network ,dorsolateral prefrontal cortex ,Brain Mapping ,medicine.diagnostic_test ,Working memory ,Functional connectivity ,General Neuroscience ,functional connectivity ,Cognitive flexibility ,Limbic lobe ,executive functions ,Executive functions ,Magnetic Resonance Imaging ,Dorsolateral prefrontal cortex ,Inhibition, Psychological ,Memory, Short-Term ,medicine.anatomical_structure ,nervous system ,Female ,Functional magnetic resonance imaging ,Neuroscience ,resting-state fMRI ,psychological phenomena and processes - Abstract
The human dorsolateral prefrontal cortex (DLPFC; approximately corresponding to Brodmann areas 9 and 46) has demonstrable roles in diverse executive functions such as working memory, cognitive flexibility, planning, inhibition, and abstract reasoning. However, it remains unclear whether this is the result of one functionally homogeneous region or whether there are functional subdivisions within the DLPFC. Here, we divided the DLPFC into seven areas along rostral-caudal and dorsal-ventral axes anatomically and explored their respective patterns of structural and functional connectivity. In vivo probabilistic tractography (11 females and 13 males) and resting-state functional magnetic resonance imaging (fMRI; 57 females and 21 males) were employed to map out the patterns of connectivity from each DLPFC subregion. Structural connectivity demonstrated graded intraregional connectivity within the DLPFC. The patterns of structural connectivity between the DLPFC subregions and other cortical areas revealed that the dorsal-rostral subregions connections were restricted to other frontal and limbic areas, whereas the ventral-caudal region was widely connected to frontal, parietal, and limbic cortex. Functional connectivity analyses demonstrated that subregions of DLPFC were strongly interconnected to each other. The dorsal subregions were associated with the default mode network (DMN), while middle dorsal-rostral subregions were linked with the multiple demand network (MDN). The ventral-caudal subregion showed increased functional coupling with both DMN and MDN. Our results suggest that the connectivity of the DLPFC may be subdivided along a dorsorostral-ventrocaudal axis with differing (albeit graded) patterns of connectivity reflecting the integrative executive function of the DLPFC.SIGNIFICANCE STATEMENTResearch has shown that the dorsolateral prefrontal cortex (DLPFC) plays a role in various executive functions. By dividing the DLPFC into seven areas along rostral-caudal and dorsal-ventral axes anatomically, we explored their patterns of structural and functional connectivity. The patterns of connectivity within DLPFC subregions demonstrated graded intraregional connectivity. There were distinctive patterns of connectivity with other cortical areas in dorsal-rostral and ventral-caudal DLPFC subregions. Divisions across DLPFC subregions seem to align with their structural and functional connectivity. Our results suggest that DLPFC may be subdivided by the diagonal axis of the dorsal-ventral axis and rostral-caudal axis, supporting the framework of a functional organization along the anterior-posterior axis in the lateral PFC.
- Published
- 2022
12. Task modulation of spatiotemporal dynamics in semantic brain networks: An EEG/MEG study
- Author
-
Rebecca L. Jackson, Setareh Rahimi, Olaf Hauk, Seyedeh-Rezvan Farahibozorg, Hauk, Olaf [0000-0003-0817-6054], and Apollo - University of Cambridge Repository
- Subjects
Adult ,Male ,Time Factors ,Semantic control ,Adolescent ,Computer science ,Brain activity and meditation ,Cognitive Neuroscience ,Source estimation ,Neurosciences. Biological psychiatry. Neuropsychiatry ,Electroencephalography ,behavioral disciplines and activities ,Article ,Angular gyrus ,Young Adult ,Spatio-Temporal Analysis ,medicine ,Selection (linguistics) ,Connectome ,Semantic memory ,Humans ,Semantic representation ,Evoked Potentials ,Temporal cortex ,Cerebral Cortex ,MEG ,Psycholinguistics ,medicine.diagnostic_test ,Magnetoencephalography ,Coherence (statistics) ,Semantics ,Neurology ,Female ,Controlled semantic cognition ,Neuroscience ,Leakage ,psychological phenomena and processes ,RC321-571 - Abstract
Highlights • Semantic task demands affect activity and connectivity at different processing stages. • Earliest task modulations occurred in posterior visual brain regions. • ATL, PTC and IFG effects reflect task-relevant retrieval of multimodal information. • ATL effects are left-lateralised for activation but bilateral for functional connectivity. • Dynamic evoked and connectivity data are essential to study semantic networks., How does brain activity in distributed semantic brain networks evolve over time, and how do these regions interact to retrieve the meaning of words? We compared spatiotemporal brain dynamics between visual lexical and semantic decision tasks (LD and SD), analysing whole-cortex evoked responses and spectral functional connectivity (coherence) in source-estimated electroencephalography and magnetoencephalography (EEG and MEG) recordings. Our evoked analysis revealed generally larger activation for SD compared to LD, starting in primary visual area (PVA) and angular gyrus (AG), followed by left posterior temporal cortex (PTC) and left anterior temporal lobe (ATL). The earliest activation effects in ATL were significantly left-lateralised. Our functional connectivity results showed significant connectivity between left and right ATL, PTC and right ATL in an early time window, as well as between left ATL and IFG in a later time window. The connectivity of AG was comparatively sparse. We quantified the limited spatial resolution of our source estimates via a leakage index for careful interpretation of our results. Our findings suggest that the different demands on semantic information retrieval in lexical and semantic decision tasks first modulate visual and attentional processes, then multimodal semantic information retrieval in the ATLs and finally control regions (PTC and IFG) in order to extract task-relevant semantic features for response selection. Whilst our evoked analysis suggests a dominance of left ATL for semantic processing, our functional connectivity analysis also revealed significant involvement of right ATL in the more demanding semantic task. Our findings demonstrate the complementarity of evoked and functional connectivity analysis, as well as the importance of dynamic information for both types of analyses.
- Published
- 2022
- Full Text
- View/download PDF
13. Overarching Principles and Dimensions of the Functional Organization in the Inferior Parietal Cortex
- Author
-
M. A. Lambon Ralph, Gina F. Humphreys, Rebecca L. Jackson, Jackson, Rebecca [0000-0001-5339-0266], Lambon Ralph, Matthew [0000-0001-5907-2488], and Apollo - University of Cambridge Repository
- Subjects
Adult ,Male ,Computer science ,Cognitive Neuroscience ,Computation ,Models, Neurological ,Posterior parietal cortex ,Stimulus (physiology) ,050105 experimental psychology ,Angular gyrus ,03 medical and health sciences ,Cellular and Molecular Neuroscience ,Inferior parietal cortex ,Cognition ,0302 clinical medicine ,sequence processing ,Parietal Lobe ,Neural Pathways ,medicine ,Humans ,0501 psychology and cognitive sciences ,AcademicSubjects/MED00385 ,Brain Mapping ,medicine.diagnostic_test ,Resting state fMRI ,AcademicSubjects/SCI01870 ,05 social sciences ,Magnetic Resonance Imaging ,numerical processing ,angular gyrus ,semantic ,AcademicSubjects/MED00310 ,Original Article ,Female ,parietal ,Nerve Net ,Functional organization ,Functional magnetic resonance imaging ,030217 neurology & neurosurgery ,Cognitive psychology - Abstract
The parietal cortex (PC) is implicated in a confusing myriad of different cognitive processes/tasks. Consequently, understanding the nature and organization of the core underlying neurocomputations is challenging. According to the Parietal Unified Connectivity-biased Computation model, two properties underpin PC function and organization. Firstly, PC is a multidomain, context-dependent buffer of time- and space-varying input, the function of which, over time, becomes sensitive to the statistical temporal/spatial structure of events. Secondly, over and above this core buffering computation, differences in long-range connectivity will generate graded variations in task engagement across subregions. The current study tested these hypotheses using a group independent component analysis technique with two independent functional magnetic resonance imaging datasets (task and resting state data). Three functional organizational principles were revealed: Factor 1, inferior PC was sensitive to the statistical structure of sequences for all stimulus types (pictures, sentences, numbers); Factor 2, a dorsal–ventral variation in generally task-positive versus task-negative (variable) engagement; and Factor 3, an anterior–posterior dimension in inferior PC reflecting different engagement in verbal versus visual tasks, respectively. Together, the data suggest that the core neurocomputation implemented by PC is common across domains, with graded task engagement across regions reflecting variations in the connectivity of task-specific networks that interact with PC.
- Published
- 2020
14. The cross-domain functional organisation of posterior lateral temporal cortex: Insights from ALE meta-analyses of seven cognitive domains spanning 9515 participants
- Author
-
Victoria J. Hodgson, Matthew A. Lambon Ralph, and Rebecca L. Jackson
- Abstract
The posterior lateral temporal cortex is implicated in many verbal, nonverbal and social cognitive domains and processes. Yet without directly comparing these disparate domains, the region’s organisation remains unclear; do distinct processes engage discrete subregions, or could different domains engage shared neural correlates and processes? Here, using activation likelihood estimation meta-analyses, the bilateral posterior lateral temporal cortex subregions engaged in seven domains were directly compared. These domains comprised semantics, semantic control, phonology, biological motion, face processing, theory of mind, and representation of tools. Whilst phonology and biological motion were predominantly associated with distinct regions, other domains implicated overlapping areas, perhaps due to shared underlying processes. Theory of mind recruited regions implicated in semantic representation in the left hemisphere, tools engaged semantic control areas, and faces engaged subregions for biological motion and theory of mind. This cross-domain approach provides insight into how posterior lateral temporal cortex is organised and why.
- Published
- 2022
15. When standard measurement meets messy genitalia: Lessons from 20th century phallometry and cervimetry
- Author
-
Rebecca L. Jackson and Merlin Wassermann
- Subjects
Male ,History ,Philosophy ,Labor, Obstetric ,History and Philosophy of Science ,Pregnancy ,Penile Erection ,Humans ,Female ,History, 19th Century ,Cervix Uteri ,Genitalia ,History, 20th Century - Abstract
This paper examines two episodes in the history and philosophy of phallometry and cervimetry in the second half of the 20th century. Phallometry is the measurement of the human penis with special devices (phallometers) in a psychophysiological context, while cervimetry is the measurement of the cervix in laboring women (by hand or by cervimeter). Despite decades of efforts to standardize these measuring practices, we still have only non-standard ways of measuring the dynamics of the cervix during labor as well as penile tumescence during arousal. We adopt the lens of "messiness" as an analytic tool in order to trace historical actors' methodological assumptions, goals, and decisions that were involved in their measuring practices. It will be argued that, far from being an a priori attribute, the "messiness" of biomedical phenomena (and how to best respond to it) depends on the actors' methodological priorities. What is "messy" is actively shaped (and re-shaped) by researchers' instrumental assumptions and theoretical commitments, as demonstrated in their method of measuring. This paper also offers a preview of early findings from our current research on the history of cervical measurement (Jackson) and phallic measurement (Wassermann). Drawing on primary source material we have analyzed, the argument will be developed in two parts. First, in the context of phallometry research: Two different and eventually diametrically opposed methodological approaches developed when confronted with "messy" human bodies and minds, a divergence which still exists today. Second, in the case of cervimetry research: "messiness" emerged when researchers tried to standardize the measurement of the human cervix, to no avail. Ironically, today's "messy" practice of measuring the cervix by hand has been continually justified by knowledge gained in the continued pursuit (and failure) of standardized replacements of this method.
- Published
- 2021
16. Critical Introduction
- Author
-
Rebecca L. Jackson and Jackie Grutsch McKinney
- Published
- 2021
17. The Graded Change in Connectivity across the Ventromedial Prefrontal Cortex Reveals Distinct Subregions
- Author
-
Rebecca L. Jackson, Lauren L. Cloutman, Matthew A. Lambon Ralph, Claude J. Bajada, Jackson, Rebecca [0000-0001-5339-0266], Lambon Ralph, Matthew [0000-0001-5907-2488], and Apollo - University of Cambridge Repository
- Subjects
Dorsum ,Adult ,Male ,Cognitive Neuroscience ,Ventromedial prefrontal cortex ,tractography ,Prefrontal Cortex ,Biology ,Prefrontal cortex ,Brain -- Concussion ,03 medical and health sciences ,Cellular and Molecular Neuroscience ,default mode network ,Young Adult ,Cognition ,0302 clinical medicine ,Neural Pathways ,medicine ,Image Processing, Computer-Assisted ,Humans ,Gray Matter ,Default mode network ,Visualization ,030304 developmental biology ,0303 health sciences ,Brain Mapping ,Functional connectivity ,functional connectivity ,Human locomotion ,Cognitive neuroscience ,Magnetic Resonance Imaging ,White Matter ,medicine.anatomical_structure ,Medial wall ,parcellation ,Original Article ,Orbitofrontal cortex ,Female ,Optical data processing ,orbitofrontal cortex ,Neuroscience ,030217 neurology & neurosurgery ,Tractography - Abstract
The functional heterogeneity of the ventromedial prefrontal cortex (vmPFC) suggests it may include distinct functional subregions. To date these have not been well elucidated. Regions with differentiable connectivity (and as a result likely dissociable functions) may be identified using emergent data-driven approaches. However, prior parcellations of the vmPFC have only considered hard splits between distinct regions, although both hard and graded connectivity changes may exist. Here we determine the full pattern of change in structural and functional connectivity across the vmPFC for the first time and extract core distinct regions. Both structural and functional connectivity varied along a dorsomedial to ventrolateral axis from relatively dorsal medial wall regions to relatively lateral basal orbitofrontal cortex. The pattern of connectivity shifted from default mode network to sensorimotor and multimodal semantic connections. This finding extends the classical distinction between primate medial and orbital regions by demonstrating a similar gradient in humans for the first time. Additionally, core distinct regions in the medial wall and orbitofrontal cortex were identified that may show greater correspondence to functional differences than prior hard parcellations. The possible functional roles of the orbitofrontal cortex and medial wall are discussed., peer-reviewed
- Published
- 2019
- Full Text
- View/download PDF
18. TRACE FOSSIL ASSEMBLAGES OF THE LOWER PILOT SHALE, GREAT BASIN, USA
- Author
-
John Tyler Robbins, Rebecca L. Jackson, and Diana L. Boyer
- Subjects
Geochemistry ,Trace fossil ,Structural basin ,Oil shale ,Geology - Published
- 2018
19. Personality Assessment Inventory scores as predictors of misconduct among sex offenders civilly committed as sexually violent predators
- Author
-
Daniel C. Murrie, Rebecca L. Jackson, Katrina A. Rufino, and Marcus T. Boccaccini
- Subjects
Adult ,Male ,Psychometrics ,Poison control ,Personality Assessment ,Risk Assessment ,Misconduct ,Borderline Personality Disorder ,Recurrence ,Surveys and Questionnaires ,medicine ,Civil Rights ,Humans ,Borderline personality disorder ,Recidivism ,Sex offender ,Sex Offenses ,Reproducibility of Results ,Middle Aged ,medicine.disease ,Texas ,Psychiatry and Mental health ,Clinical Psychology ,Commitment of Mentally Ill ,Sex offense ,Personality Assessment Inventory ,Psychology ,Social psychology ,Incremental validity ,Clinical psychology - Abstract
We examined the usefulness of scores on the Personality Assessment Inventory (PAI; Morey, 1991) in predicting treatment program violations among 76 sexual offenders civilly committed as sexually violent predators. Scores on the Borderline Features scale (area under the curve [AUC] = .69, p = .005) and Negative Relationships subscale (BOR-N: AUC = .71, p < .001) were the strongest predictors of misconduct, outperforming scores on scales designed to predict poor treatment amenability and antisocial behavior. Incremental validity analyses indicated that BOR scores made a significant contribution to the prediction of misconduct after controlling for scores on measures of overall self-reported distress (e.g., Mean Clinical Elevation, Negative Impression), which were also predictive of program violations. Overall, our findings point to the potential utility of integrating components of treatment for borderline personality disorder into sex offender treatment.
- Published
- 2013
20. Sex Offender Civil Commitment
- Author
-
Rebecca L. Jackson and Christmas N. Covell
- Subjects
Ethical issues ,Political science ,Sex offender ,Criminology ,Social psychology - Published
- 2013
21. An emergent functional parcellation of the temporal cortex
- Author
-
Rebecca L, Jackson, Claude J, Bajada, Grace E, Rice, Lauren L, Cloutman, and Matthew A, Lambon Ralph
- Subjects
Adult ,Brain Mapping ,Young Adult ,Adolescent ,Echo-Planar Imaging ,Humans ,Temporal Lobe - Abstract
The temporal lobe has been associated with various cognitive functions which include memory, auditory cognition and semantics. However, at a higher level of conceptualisation, all of the functions associated with the temporal lobe can be considered as lying along one major axis; from modality-specific to modality-general processing. This paper used a spectral reordering technique on resting-state and task-based functional data to extract the major organisational axis of the temporal lobe in a bottom-up, data-driven fashion. Independent parcellations were performed on resting-state scans from 71 participants and active semantic task scans from 23 participants acquired using dual echo gradient echo planar imaging in order to preserve signal in inferior temporal cortex. The resulting organisational axis was consistent (over dataset and hemisphere) and progressed from superior temporal gyrus and posterior inferior temporal cortex to ventrolateral anterior temporal cortex. A hard parcellation separated a posterior (superior temporal and posterior fusiform and inferior temporal gyri) and an anterior cluster (ventrolateral anterior temporal lobe). The functional connectivity of the hard clusters supported the hypothesis that the connectivity gradient separated modality-specific and modality-general regions. This hypothesis was then directly tested by performing a VOI analysis upon an independent semantic task-based data set including auditory and visually presented stimuli. This confirmed that the ventrolateral anterior aspects of the temporal lobe are associated with modality-general processes whilst posterior and superior aspects are specific to certain modalities, with the posterior inferior subregions involved in visual processes and superior regions involved in audition.
- Published
- 2016
22. The Semantic Network at Work and Rest: Differential Connectivity of Anterior Temporal Lobe Subregions
- Author
-
Paul Hoffman, Gorana Pobric, Rebecca L. Jackson, and Matthew A. Lambon Ralph
- Subjects
Adult ,Male ,Work ,Middle temporal gyrus ,Rest ,Inferior frontal gyrus ,050105 experimental psychology ,Angular gyrus ,03 medical and health sciences ,Superior temporal gyrus ,0302 clinical medicine ,Supramarginal gyrus ,Semantic memory ,Humans ,0501 psychology and cognitive sciences ,Temporal cortex ,Brain Mapping ,General Neuroscience ,05 social sciences ,Superior temporal sulcus ,Articles ,Magnetic Resonance Imaging ,Temporal Lobe ,Semantics ,Female ,Nerve Net ,Psychology ,Neuroscience ,030217 neurology & neurosurgery ,Psychomotor Performance - Abstract
The anterior temporal lobe (ATL) makes a critical contribution to semantic cognition. However, the functional connectivity of the ATL and the functional network underlying semantic cognition has not been elucidated. In addition, subregions of the ATL have distinct functional properties and thus the potential differential connectivity between these subregions requires investigation. We explored these aims using both resting-state and active semantic task data in humans in combination with a dual-echo gradient echo planar imaging (EPI) paradigm designed to ensure signal throughout the ATL. In the resting-state analysis, the ventral ATL (vATL) and anterior middle temporal gyrus (MTG) were shown to connect to areas responsible for multimodal semantic cognition, including bilateral ATL, inferior frontal gyrus, medial prefrontal cortex, angular gyrus, posterior MTG, and medial temporal lobes. In contrast, the anterior superior temporal gyrus (STG)/superior temporal sulcus was connected to a distinct set of auditory and language-related areas, including bilateral STG, precentral and postcentral gyri, supplementary motor area, supramarginal gyrus, posterior temporal cortex, and inferior and middle frontal gyri. Complementary analyses of functional connectivity during an active semantic task were performed using a psychophysiological interaction (PPI) analysis. The PPI analysis highlighted the same semantic regions suggesting a core semantic network active during rest and task states. This supports the necessity for semantic cognition in internal processes occurring during rest. The PPI analysis showed additional connectivity of the vATL to regions of occipital and frontal cortex. These areas strongly overlap with regions found to be sensitive to executively demanding, controlled semantic processing.SIGNIFICANCE STATEMENTPrevious studies have shown that semantic cognition depends on subregions of the anterior temporal lobe (ATL). However, the network of regions functionally connected to these subregions has not been demarcated. Here, we show that these ventrolateral anterior temporal subregions form part of a network responsible for semantic processing during both rest and an explicit semantic task. This demonstrates the existence of a core functional network responsible for multimodal semantic cognition regardless of state. Distinct connectivity is identified in the superior ATL, which is connected to auditory and language areas. Understanding the functional connectivity of semantic cognition allows greater understanding of how this complex process may be performed and the role of distinct subregions of the anterior temporal cortex.
- Published
- 2016
23. Civil Commitment of Select Recidivistic Sexual Offenders Deemed Likely to Sexually Reoffend
- Author
-
Rebecca L. Jackson and Harry M. Hoberman
- Subjects
Statute ,Sexual offense ,Virtue ,Action (philosophy) ,media_common.quotation_subject ,Public policy ,Personality ,Sanctions ,Criminology ,Psychology ,Criminal justice ,media_common - Abstract
In the United States, the civil commitment of recidivist sexual offenders concerns the indeterminate detention for the purpose of public safety (to reduce or prevent future sexual offending) of a small, select subset of sexual offenders (those deemed at particularly higher risk by virtue of certain psychological and/or psychiatric (“mental” or “personality”) characteristics). Almost all such sexual offenders are persons who have completed one or more incarcerations in the criminal justice system, typically with their most recent crime being a sexual offense. Such action necessarily involves the balancing of liberty interests or freedom of those select recidivist sexual offenders with public safety concerns about their potential for persisting dangerousness, specifically the likelihood of future sexual offending. Managing sexual offenders who have committed multiple and/or extreme sexual offenses as the result of some sets of psychological or psychiatric conditions has long been a concern for Western society. Over the past 100 years, in the United States, public policy has shifted among different approaches to dealing with recidivistic sexual offenders perceived as still at elevated risk for sexual offending, sometimes emphasizing enhanced criminal commitment sanctions, sometimes opting to offer a hypothesized therapeutic approach via civil commitment, and sometimes utilizing both increased criminal and civil commitments. The purpose of this chapter is to consider the current civil commitment of recidivistic, the characteristics of sexual offenders, typically referred to as sexually violent offenders or “predators” (CCSVP). In doing so, an overview is provided of the key elements of so-called sexually violent predator (SVP) statutes, the assessment components of evaluations of those sexual offenders selected for consideration under such statutes, characteristics of sexual offender currently the assessment and evaluation practices committed under these statutes and aspects of the civil commitment programs for such individuals.
- Published
- 2016
24. Forensic Evaluations of Sexual Offenders: Principles and Practices for Almost All Sexual Offender Appraisals
- Author
-
Harry M. Hoberman and Rebecca L. Jackson
- Subjects
Forensic science ,Relative value ,Rating scale ,Applied psychology ,ComputingMilieux_COMPUTERSANDSOCIETY ,ComputingMilieux_LEGALASPECTSOFCOMPUTING ,Context (language use) ,Psychological testing ,Justice (ethics) ,Set (psychology) ,Psychology ,Mental health - Abstract
This chapter takes the position that virtually all “mental health” and related evaluations of sexual offenders are, in fact, forensic evaluations, in that they almost always involve the appraisal of “justice-involved clients.” Most so-called clinical evaluations, involving treatment planning or related to dispositional status, are conducted in the context of the justice system and are most accurately regarded as forensic evaluations. The purpose of this chapter is to describe relevant principles, methods, and other considerations in conducting adequate and informed forensic evaluations of sexual offenders (e.g., most evaluations of sexual offenders) and to discuss a set of domains and procedures (interviews, tests, questionnaires, and rating scales) for collecting relevant, reliable, and admissible information for assessing and appraising the various psycho-legal questions that the judicial system might pose regarding sexual offenders. The notions of a “forensic ethic,” which distinguishes traditional clinical evaluations from forensic ones, are delineated: the primary forensic task of critically or skeptically examining an individual appraised within a particular psycho-legal context and advocating for the “data” and conclusions of the evaluation and not necessarily the evaluatee in any capacity. Various principles and procedures identified as defining forensic mental health evaluations are identified that lead to informed, well-founded opinions that acknowledge the key multiple sources of information available to the forensic evaluator. Central elements of forensic evaluations are presented and applied to appraisals of sexual offenders, including record review, issues in the direct evaluations of individuals (including the relative value of interviews with alleged or identified sexual offenders), structured psychological assessment, and report writing (developing and documenting opinions and their bases as applied to the particular psycho-legal issues).
- Published
- 2016
25. On Individual Differences in Person Perception: Raters’ Personality Traits Relate to Their Psychopathy Checklist-Revised Scoring Tendencies
- Author
-
Marcus T. Boccaccini, Katrina A. Rufino, Rebecca L. Jackson, Daniel C. Murrie, and Audrey K. Miller
- Subjects
Adult ,Male ,Agreeableness ,Psychometrics ,media_common.quotation_subject ,education ,Psychopathy ,macromolecular substances ,Models, Psychological ,Personality Disorders ,Developmental psychology ,Judgment ,medicine ,Humans ,Personality ,Big Five personality traits ,Applied Psychology ,media_common ,Psychopathy Checklist ,Dark triad ,Psychopathology ,technology, industry, and agriculture ,Reproducibility of Results ,Forensic Psychiatry ,equipment and supplies ,musculoskeletal system ,medicine.disease ,Clinical Psychology ,Facet (psychology) ,Female ,Perception ,Self Report ,Psychological Theory ,Psychology ,Clinical psychology - Abstract
This study investigated raters’ personality traits in relation to scores they assigned to offenders using the Psychopathy Checklist—Revised (PCL-R). A total of 22 participants, including graduate students and faculty members in clinical psychology programs, completed a PCL-R training session, independently scored four criminal offenders using the PCL-R, and completed a comprehensive measure of their own personality traits. A priori hypotheses specified that raters’ personality traits, and their similarity to psychopathy characteristics, would relate to raters’ PCL-R scoring tendencies. As hypothesized, some raters assigned consistently higher scores on the PCL-R than others, especially on PCL-R Facets 1 and 2. Also as hypothesized, raters’ scoring tendencies related to their own personality traits (e.g., higher rater Agreeableness was associated with lower PCL-R Interpersonal facet scoring). Overall, findings underscore the need for future research to examine the role of evaluator characteristics on evaluation results and the need for clinical training to address evaluators’ personality influences on their ostensibly objective evaluations.
- Published
- 2011
26. Filicide: Gender Bias in California Defense Attorneys' Perception of Motive And Defense Strategies
- Author
-
Rebecca L. Jackson, Wendy Packman, Jennifer Orthwein, and Bruce Bongar
- Subjects
media_common.quotation_subject ,Jealousy ,Mistake ,Prison ,Mens rea ,Mental illness ,medicine.disease ,Pathology and Forensic Medicine ,Psychiatry and Mental health ,Vignette ,Insanity ,Perception ,medicine ,Psychology (miscellaneous) ,Psychology ,Law ,Social psychology ,media_common - Abstract
This study is the first of its kind to evaluate attorneys' perception of motive and defense strategies when presented with a fictional filicide case. A vignette-based survey was designed to elicit data regarding perception of motive and willingness to use various defenses. Participants were more likely to agree that jealousy and retaliation were motivating factors when the perpetrator was male, but agreed more strongly that mental illness was a motivating factor when the perpetrator was female. Male perpetrators were more likely to be encouraged to accept a 15-year prison term, while attorneys were more willing to use insanity and mistake as mitigating defenses when the offender was female. Gender of participants also affected the perception of motive and defense strategies used. Results suggest that female attorneys are more likely to use defenses aimed to negate mens rea and female defendants are more likely to be encouraged to use such a defense.
- Published
- 2010
27. Sex Offender Civil Commitment: Recommedations for Empirically Guided Evaluations
- Author
-
Rebecca L. Jackson
- Subjects
Psychiatry and Mental health ,Sex offender ,Applied psychology ,Context (language use) ,Psychology ,Law ,Social psychology ,humanities ,health care economics and organizations - Abstract
Evaluations of sex offenders in the context of civil commitment occur both pre- and post-commitment. Pre-commitment evaluations must address the relevant prongs of the state's civil commitment statute including the presence of a mental disorder or abnormality, likelihood of future sexual violence, and the volitional link between the two. Post-commitment evaluations must assess treatment progress and readiness for release. A thorough understanding of assessment and diagnostic issues relating to sexual offender civil commitment are essential in conducting both pre- and post-commitment evaluations. The high stakes nature of sex offender civil commitment demands rigorous and empirically based evaluations.
- Published
- 2008
28. The Hare PSCAN and Its Relationship to Psychopathy in a Sample of Civilly Committed Sexual Offenders
- Author
-
Henry J. Richards, Rebecca L. Jackson, and Rebecca E. Brackett
- Subjects
Recidivism ,Sex offender ,Psychopathy ,Gold standard ,Sample (statistics) ,medicine.disease ,Pathology and Forensic Medicine ,Psychiatry and Mental health ,Acquired immunodeficiency syndrome (AIDS) ,medicine ,Screening tool ,Pshychiatric Mental Health ,Construct (philosophy) ,Psychology ,Clinical psychology - Abstract
Psychopathy is an important clinical construct in clinical, community, and forensic populations. In forensic populations, it has been found to be a consistent predictor of recidivism and aids in offender management and treatment decisions. Research supports routine assessment of the construct within criminal populations. As routine assessment with the “gold standard” PCL-R can be difficult due to institutional constraints, the need for a quick yet reliable measure has surfaced. The PSCAN, a 90 item rating scheme designed for use by non-psychologists, was developed to meet this need. This study examined the psychometric properties of the PSCAN as well as its relationship to the PCL-R and its utility as a screen for psychopathy. PSCANs were rated by master and doctoral level psychologists for residents in a sex offender civil commitment program. Results suggest the PSCAN has high reliability and may serve as an effective screening tool for psychopathy when administered by raters of various educational backg...
- Published
- 2008
29. Evaluation for Civil Commitment of Sex Offenders: A Survey of Experts
- Author
-
Rebecca L. Jackson and Derek T. Hess
- Subjects
Adult ,Male ,Mental Health Services ,medicine.medical_specialty ,Psychopathy ,Poison control ,Risk Assessment ,Documentation ,Secondary Prevention ,medicine ,Humans ,0501 psychology and cognitive sciences ,Psychiatry ,General Psychology ,Sexual violence ,Mental Disorders ,Sex offender ,Sex Offenses ,050901 criminology ,05 social sciences ,Reproducibility of Results ,Human factors and ergonomics ,Forensic Psychiatry ,Middle Aged ,medicine.disease ,United States ,Psychiatry and Mental health ,Mental Health ,Research Design ,Commitment of Mentally Ill ,Female ,Paraphilia ,Sex offense ,0509 other social sciences ,Psychology ,050104 developmental & child psychology ,Clinical psychology - Abstract
At this study's commencement, 17 states had enacted sex offender civil commitment legislation. Although each statute outlines broad criteria that must be met, civil commitment evaluators are given considerable latitude in how to conduct their assessment. Forty-one experts who conduct sex offender civil commitment evaluations were surveyed to identify the usual practice of these evaluators. A great deal of agreement exists across experts regarding the conduct of sex offender civil commitment evaluations. However, these patterns appear quite different from the usual practice outlined in other types of forensic evaluations. Experts in sex offender civil commitment endorsed documentation as the core method for evaluation. The majority of evaluators reported the assessment of paraphilias, substance abuse, other Axis I disorders, Axis II disorders, and psychopathy as essential to the evaluation. Virtually all survey respondents utilized actuarial risk assessment measures, primarily the Static-99, in assessing for risk of future sexual violence. Although several approaches to assessing volitional impairment were described, the majority of respondents reported that a history of sex offending combined with a personality disorder or a paraphilia established the necessary link between mental abnormality and risk of future sexual violence. An overwhelming majority of experts indicated that it was essential for evaluators to report their ultimate opinion as to whether criteria had been met for civil commitment. Future research regarding the use and incorporation of documentation should be conducted to determine whether the heavy reliance on documentation is unique to sex offender civil commitment evaluations, or whether it is commonly used in other forensic evaluations.
- Published
- 2007
30. Psychopathy and the five factor model: Self and therapist perceptions of psychopathic personality
- Author
-
Rebecca L. Jackson and Henry J. Richards
- Subjects
Psychopathic personality ,Dark triad ,media_common.quotation_subject ,Psychopathy ,Alternative five model of personality ,medicine.disease ,Developmental psychology ,Perception ,medicine ,Personality ,Big Five personality traits ,Personality Assessment Inventory ,Psychology ,General Psychology ,media_common - Abstract
The utility of psychopaths’ self-reports have consistently been questioned in the literature. Extant literature attempts to assess the degree to which individuals with psychopathic tendencies can and do identify in themselves those traits associated with psychopathy. Typically, self-report measures are more highly correlated with Factor 2 of the PCL-R than Factor 1. This pattern suggests that psychopaths are better able to reliably assess their behavior than their personality or emotional traits. Unexplored is whether psychopaths perceive their personality differently than observers’ when using the same measure. The current study assesses the congruence of offenders’ self-report of personality and the personality ratings provided by their primary therapists using a uniform measure of personality, the NEO-PI-R. Results suggest that offenders’ ability to accurately report on their personality characteristics is hampered by their emotional and affective deficits (psychopathy Facet 2). Implications for FFM-psychopathy research and psychopathy self-reports are discussed.
- Published
- 2007
31. The timing of anterior temporal lobe involvement in semantic processing
- Author
-
Rebecca L, Jackson, Matthew A, Lambon Ralph, and Gorana, Pobric
- Subjects
Male ,Language Tests ,Time Factors ,Neuropsychological Tests ,Transcranial Magnetic Stimulation ,Temporal Lobe ,Semantics ,Judgment ,Young Adult ,Pattern Recognition, Visual ,Reading ,Reaction Time ,Humans ,Female - Abstract
Despite indications that regions within the anterior temporal lobe (ATL) might make a crucial contribution to pan-modal semantic representation, to date there have been no investigations of when during semantic processing the ATL plays a critical role. To test the timing of the ATL involvement in semantic processing, we studied the effect of double-pulse TMS on behavioral responses in semantic and difficulty-matched control tasks. Chronometric TMS was delivered over the left ATL (10 mm from the tip of the temporal pole along the middle temporal gyrus). During each trial, two pulses of TMS (40 msec apart) were delivered either at baseline (before stimulus presentation) or at one of the experimental time points 100, 250, 400, and 800 msec poststimulus onset. A significant disruption to performance was identified from 400 msec on the semantic task but not on the control assessment. Our results not only reinforce the key role of the left ATL in semantic representation but also indicate that its contribution is especially important around 400 msec poststimulus onset. Together, these facts suggest that the ATL may be one of the neural sources of the N400 ERP component.
- Published
- 2015
32. Detection Strategies for Malingering
- Author
-
Rebecca L. Jackson, Karen L. Salekin, Kenneth W. Sewell, and Richard Rogers
- Subjects
050103 clinical psychology ,medicine.medical_specialty ,media_common.quotation_subject ,05 social sciences ,Poison control ,050109 social psychology ,medicine.disease ,Confirmatory factor analysis ,Pathology and Forensic Medicine ,Minnesota Multiphasic Personality Inventory ,Malingering ,Structured interview ,medicine ,Personality ,0501 psychology and cognitive sciences ,Spurious relationship ,Psychology ,Psychiatry ,Law ,Normative sample ,General Psychology ,media_common ,Clinical psychology - Abstract
The clinical assessment of malingering requires the systematic application of empirically validated detection strategies. Prior investigations of the Structured Interview of Reported Symptoms (SIRS) and the Minnesota Multiphasic Personality Inventory-2 have not fully addressed whether individual scales represent well-defined dimensions. The first phase of this study reexamined the original SIRS normative sample via maximum-likelihood factor analysis with promax rotation and subjected the resulting two-factor model to confirmatory factor analysis. The second phase was a cross-validation of the two-factor model on combined data from correctional-mental health and forensic settings. With one modification, the two-factor model was confirmed. The two dimensions (Spurious Presentation and Plausible Presentation) are theoretically relevant to the assessment of malingering.
- Published
- 2005
33. Forensic Applications of the Miller Forensic Assessment of Symptoms Test (MFAST): Screening for Feigned Disorders in Competency to Stand Trial Evaluations
- Author
-
Rebecca L. Jackson, Kenneth W. Sewell, and Richard Rogers
- Subjects
Adult ,Male ,Malingering ,Deception ,Psychometrics ,media_common.quotation_subject ,MEDLINE ,Personality Assessment ,Simulation design ,Diagnosis, Differential ,Arts and Humanities (miscellaneous) ,medicine ,Humans ,Mental Competency ,General Psychology ,media_common ,biology ,Mental Disorders ,Prisoners ,Miller ,Reproducibility of Results ,medicine.disease ,biology.organism_classification ,Test (assessment) ,Legal psychology ,Forensic science ,Psychiatry and Mental health ,Female ,Psychology ,Law ,Clinical psychology - Abstract
Forensic evaluations must systematically assess malingering and related response styles. In the criminal forensic domain, competency to stand trial evaluations are the most common referrals. Effective screens for feigned incompetency would be valuable assets for forensic evaluations. This study evaluates the effectiveness of the Miller Forensic Assessment of Symptoms Test (MFAST) as a screen for feigned incompetency. Using a simulation design, the MFAST was tested on jail and competency-restoration samples. Most notably, recommended MFAST cut score (> or =6) was useful for the identification of feigning cases in competency evaluations. Recommendations for forensic practice, including the advantages and disadvantages of systematic screens, are discussed.
- Published
- 2005
34. The Adequacy and Accuracy of Sexually Violent Predator Evaluations: Contextualized Risk Assessment in Clinical Practice
- Author
-
Daniel W. Shuman, Rebecca L. Jackson, and Richard Rogers
- Subjects
Sexual violence ,Applied psychology ,Public policy ,ComputingMilieux_LEGALASPECTSOFCOMPUTING ,Pathology and Forensic Medicine ,Clinical Practice ,Psychiatry and Mental health ,Graduate students ,ComputingMilieux_COMPUTERSANDSOCIETY ,Pshychiatric Mental Health ,Risk assessment ,Psychology ,Social psychology ,Predator - Abstract
A critical issue for public policy and professional forensic practice is whether Sexually Violent Predator commitment is an empirically-validated determination. Utilizing a mixed factorial design, forensic psychologists and graduate students were asked to make predictions about offenders' likelihood of future sexual violence and their appropriateness for Sexually Violent Predator commitment. Forensic psychologists demonstrated adequate application of the relevant psycholegal standard, but made accurate predictions approximately one half of the time. Surprisingly, graduate students demonstrated a greater ability to discriminate between types of violent behavior (nonsexual versus sexual), but applied the relevant legal standard with less precision than forensic psychologists. Finally, the current results suggest that emotionallyevocative information in the form of victim statements biased psychologists' and students' predictions of future sexual violence and resulted in students' increased support for the o...
- Published
- 2004
35. An Examination of the ECST-R as a Screen for Feigned Incompetency to Stand Trial
- Author
-
Kimberly S. Harrison, Kenneth W. Sewell, Rebecca L. Jackson, and Richard Rogers
- Subjects
Research design ,medicine.medical_specialty ,Psychometrics ,media_common.quotation_subject ,Reproducibility of Results ,Test validity ,medicine.disease ,Psychological evaluation ,Psychiatry and Mental health ,Clinical Psychology ,Research Design ,Malingering ,Surveys and Questionnaires ,Structured interview ,medicine ,Humans ,Mental Competency ,Aptitude ,Psychological testing ,Crime ,Psychiatry ,Psychology ,media_common - Abstract
Psychological assessments of competency-to-stand-trial (CST) referrals must consider whether the defendants' impairment is genuine or feigned. This study addressed feigning on the Evaluation of Competency to Stand Trial--Revised (ECST-R), a standardized interview designed for assessing dimensions of CST and screening for feigned CST. In particular, this study examined the effectiveness of the ECST-R's Atypical Presentation (ATP) scales as screens for feigned incompetency. It examined ATP scales for (a) jail detainees (n=96) in simulation and control conditions and (b) inpatient competency cases (n=56) in clinical comparison and probable malingering groups. Comparisons of ATP scales yielded very large effect sizes for feigners when compared with jail controls (mean d=2.50) and genuine inpatient competency cases (mean d=1.83). Several cut scores were established with very few false negatives and robust sensitivity estimates. In summary, the ECST-R ATP scales appear to be homogenous scales with established clinical use as feigning screens in CST evaluations.
- Published
- 2004
36. Assessing Axis I Symptomatology on the SADS-C in Two Correctional Samples: The Validation of Subscales and a Screen for Malingered Presentations
- Author
-
Richard Rogers, Rebecca L. Jackson, Karen L. Salekin, and Craig S. Neumann
- Subjects
Adult ,Male ,medicine.medical_specialty ,Psychometrics ,Health, Toxicology and Mutagenesis ,Test validity ,Dysphoria ,Arts and Humanities (miscellaneous) ,Interview, Psychological ,Juvenile delinquency ,medicine ,Humans ,Psychiatry ,Psychiatric Status Rating Scales ,Mood Disorders ,Prisoners ,Texas ,Confirmatory factor analysis ,Clinical Psychology ,Inter-rater reliability ,Structured interview ,Schizophrenia ,Schizophrenic Psychology ,medicine.symptom ,Psychology ,Mania - Abstract
The Schedule of Affective Disorders and Schizophrenia-Change Version (SADS-C; Spitzer & Endicott, 1978b) is a brief, highly reliable structured interview with clinical applications to diverse populations. This investigation involved reanalyses of data from 2 earlier studies (Rogers, Grandjean, Tillbrook, Vitacco, & Sewell, 2001; Ustad, Rogers, & Salekin, 1998). Focusing on 2 clinical samples from a metropolitan jail, we investigated its subscales via exploratory and confirmatory factor analysis. A good model fit was found (comparative fit index =.92; robust comparative fit index =.94) for 4 subscales (Dysphoria, Psychosis, Mania, and Insomnia) with good interrater reliability (M intraclass coefficient =.95) and clinical relevance. As a preliminary screen for feigned mental disorders, 2 detection scales (Symptom Combinations and Symptom Selectivity) were moderately successful. By maximizing negative predictive power, the SADS-C detection strategies proved effective at ruling out feigning for mentally disordered offenders with a high likelihood of genuine disorders.
- Published
- 2003
37. Assessing Dimensions of Competency to Stand Trial
- Author
-
Mary A. Martin, Rebecca L. Jackson, Richard Rogers, Chad E. Tillbrook, and Kenneth W. Sewell
- Subjects
Adult ,Male ,050103 clinical psychology ,Validation study ,Psychometrics ,Applied psychology ,050109 social psychology ,Models, Psychological ,Interview, Psychological ,Humans ,Mental Competency ,0501 psychology and cognitive sciences ,Applied Psychology ,Psychiatric Status Rating Scales ,Jurisprudence ,Conceptualization ,05 social sciences ,Cognitive complexity ,Construct validity ,Forensic Psychiatry ,United States ,Test (assessment) ,Clinical Psychology ,Psychiatric status rating scales ,Female ,Psychology ,Supreme Court Decisions ,Social psychology - Abstract
Four decades of forensic research have left unanswered a fundamental issue regarding the best conceptualization of competency to stand trial vis-à-vis the Dusky standard. The current study investigated three competing models (discrete abilities, domains, and cognitive complexity) on combined data ( N = 411) from six forensic and correctional samples. Using the Evaluation of Competency to Stand Trial–Revised (ECST-R), items representative of the Dusky prongs were used to test the three models via maximum-likelihood confirmatory factor analyses (CFA). Of the three, only the discrete abilities model evidenced a good fit, indicating that competency to stand trial should consider separately each defendant’s factual understanding of the proceedings, rational understanding of the proceedings, and ability to consult with counsel. ECST-R competency scales, based on the current CFA, have excellent alphas (.83 to .89) and interrater reliabilities (.97 to .98).
- Published
- 2003
38. Psychopathy in Female Offenders
- Author
-
Rebecca L. Jackson, Paul L. Lambert, Richard Rogers, and Craig S. Neumann
- Subjects
medicine.medical_specialty ,Conceptualization ,Antisocial personality disorder ,05 social sciences ,Psychopathy ,050401 social sciences methods ,Poison control ,Human factors and ergonomics ,medicine.disease ,Pathology and Forensic Medicine ,0504 sociology ,Injury prevention ,050501 criminology ,medicine ,Construct (philosophy) ,Psychiatry ,Psychology ,Law ,General Psychology ,0505 law ,Clinical psychology ,Psychopathology - Abstract
Psychopathy is an important clinical construct in explaining criminal behavior, determining the likelihood of treatment response, and evaluating risk assessment. The majority of past research has focused on male offenders or male forensic patients. Psychopathy in females is relatively unexplored. The current study was designed to further investigate the underlying dimensions of psychopathy in females. Utilizing a sample of 119 female inmates from a large metropolitan area jail, a series of confirmatory factor analyses was undertaken. Previous research and clinical tradition suggest the use of a two-factor conceptualization of psychopathy. More recent research suggests that a three-factor model may better capture the underlying dimensions of psychopathy. Two-factor models of psychopathy were not confirmed. However, the three-factor model reproduced the data extremely well. Clinical and research implications of this finding are addressed.
- Published
- 2002
39. Faking Psychopathy? An Examination of Response Styles With Antisocial Youth
- Author
-
Mary A. Martin, Kenneth W. Sewell, Michelle Collins, Rebecca L. Jackson, Richard Rogers, and Michael J. Vitacco
- Subjects
Male ,Self-Assessment ,Psychopathy Checklist ,Deception ,Dark triad ,Adolescent ,Psychometrics ,Health, Toxicology and Mutagenesis ,Psychopathy ,Context (language use) ,Antisocial Personality Disorder ,medicine.disease ,Developmental psychology ,Clinical Psychology ,Manipulation checks ,Social Desirability ,Arts and Humanities (miscellaneous) ,Social Conformity ,Malingering ,medicine ,Juvenile delinquency ,Humans ,Female ,Psychology - Abstract
Psychopaths frequently con and manipulate others in an attempt to achieve their own objectives. In the current literature, correlational research has generally found that psychopathy has (a) an inverse relation with social desirability and (b) a positive relation with malingering. Although instructive, these correlational data do not address whether the assessment of psychopathy is vulnerable to specific response styles. This study examined 2 response styles among adolescent offenders in the context of pending adjudication: social desirability and social nonconformity. On 3 measures of psychopathy (i.e., Psychopathy Checklist: Youth Version, Psychopathy Screening Device, and Self-Report of Psychopathy-Second Edition), a simulation design was employed with a realistic scenario, incentives for successful deception, and appropriate manipulation checks. Results indicated moderate to large effect sizes for social desirability and large effect sizes for social nonconformity. The implications of these results for the clinical assessment of psychopathy are discussed.
- Published
- 2002
40. Sleep spindles provide indirect support to the consolidation of emotional encoding contexts
- Author
-
Rebecca L. Jackson, Scott A. Cairney, Penelope A. Lewis, and Simon J. Durrant
- Subjects
Adult ,Male ,C850 Cognitive Psychology ,Cognitive Neuroscience ,Emotions ,Sleep spindles ,Rapid eye movement sleep ,BF ,Sleep spindle ,Context (language use) ,Experimental and Cognitive Psychology ,050105 experimental psychology ,Developmental psychology ,03 medical and health sciences ,Behavioral Neuroscience ,Young Adult ,0302 clinical medicine ,Emotionality ,Memory ,Humans ,0501 psychology and cognitive sciences ,Association (psychology) ,Emotion ,Forgetting ,05 social sciences ,Context ,Brain ,Electroencephalography ,Nap ,Affect ,Wakefulness ,Female ,Sleep Stages ,Psychology ,B140 Neuroscience ,030217 neurology & neurosurgery ,Consolidation ,Cognitive psychology - Abstract
Emotional memories tend to be strengthened ahead of neutral memories during sleep-dependent consolidation. In recent work, however, we found that this is not the case when emotion pertains to the contextual features of a memory instead of its central constructs, suggesting that emotional contexts are influenced by distinct properties of sleep. We therefore examined the sleep-specific mechanisms supporting representations of emotional context and asked whether these differ to those already implicated in central emotional memory processing, such as rapid eye movement sleep (REM). Participants encoded neutral foreground images that were each associated with an emotionally negative or neutral background (context) image. Immediate and delayed tests for the emotionality of the foreground/background image association were separated by a 4-h consolidation period, which consisted of either total wakefulness or included a 2-h polysomnographically monitored nap. Although memory for negative contexts was not associated with REM, or any other parameter of sleep, sleep spindles (12–15Hz) predicted increased forgetting and slowed response times for neutral contexts. Together with prior work linking spindles to emotional memory processing, our data may suggest that spindles provide multi-layered support to emotionally salient memories in sleep, with the nature of such effects depending on whether the emotionality of these memories pertains to their central or contextual features. Therefore, whereas spindles may mediate a direct strengthening of central emotional information, as suggested in prior work, they may also provide concurrent indirect support to emotional contexts by working to suppress non-salient neutral contexts.
- Published
- 2014
41. Structured and Unstructured Interviews
- Author
-
Michael J. Vitacco and Rebecca L. Jackson
- Subjects
Psychology - Published
- 2012
42. Management of Chronic Achilles Tendon Infection with Musculotendinous Gracius Interposition Free-Flap Coverage
- Author
-
William C. Lineaweaver, Robert J. Feibel, Rebecca L. Jackson, and Harry J. Buncke
- Subjects
Adult ,Male ,Rupture ,Leg ,medicine.medical_specialty ,Achilles tendon ,business.industry ,Free flap ,Anastomosis ,Achilles Tendon ,Surgical Flaps ,Surgery ,Resection ,Tendon ,Transplantation ,Plastic surgery ,medicine.anatomical_structure ,Chronic Disease ,Humans ,Surgical Wound Infection ,Medicine ,Ankle ,business - Abstract
Management of infected Achilles tendon repair poses a significant reconstructive problem. Thorough debridement is most important and resection of non-viable tendon substance is required. Reconstruction of such tendon defects requires vascularized soft-tissue coverage that is stable and that offers the possibility of functional restoration. Gracilis free-tissue transfer is an effective means of providing stable, durable, well-vascularized, soft-tissue coverage in an infected Achilles tendon repair. The microsurgical anastomoses are technically straightforward. Cybex II dynomometer measurements, performed 6 months following free-tissue transplantation, revealed strength (torque) and power, at an angular velocity of 45 degrees per second, of: 59 percent and 52 percent, respectively, compared to the uninjured side. Endurance was assessed at an angular velocity of 120 degrees per second over a 15-second test interval, and was noted to be 81 percent, compared to the normal ankle. Excellent functional results and acceptable soft-tissue contour can be expected with this technique.
- Published
- 1993
43. Soft-Tissue Reconstruction in Orthopedic Surgery
- Author
-
Rebecca L. Jackson, Gregory M. Buncke, Alfonso Oliva, Robert J. Feibel, and Harry J. Buncke
- Subjects
Ilizarov Technique ,Tourniquet ,medicine.medical_specialty ,Osteosynthesis ,business.industry ,medicine.medical_treatment ,Soft tissue ,Surgery ,Transplantation ,Fixation (surgical) ,surgical procedures, operative ,Orthopedic surgery ,medicine ,Orthopedics and Sports Medicine ,business ,Tissue expansion - Abstract
The original consulting microsurgeon should be present to assist in the identification and protection of the vascular pedicle during secondary procedures on microvascular transplants. Flap elevation, trimming, and bone graft placement should be completed during a single tourniquet time, whenever possible. Flaps can easily be resutured on the original bed while the tourniquet is still inflated. Although proximal pedicle transection is possible, it should be avoided by careful planning, because the transplanted tissue cannot be predictably expected to survive, especially with muscle transplants. The distal muscle should be transected only in situations in which the muscle inset is extremely complex. Transection in the extramuscular portion of the main pedicle may require prompt microsurgical repair in immature muscle transplants. The safest approach is to avoid the pedicle whenever additional secondary procedures are necessary following free microvascular tissue transplantation. Placement of vascular pedicles such that the anterior crest of the tibia is avoided if the Ilizarov technique is required permit uncomplicated distraction osteosynthesis. Simultaneous Ilizarov fixation and microvascular tissue transfer are safe, practical procedures for limb salvage. Placement of the Ilizarov fixator at the time of microvascular transplantation provides stable fixation and eliminates the need for a subsequent anesthetic for fixator placement. This form of stabilization, when performed at the time of microvascular tissue transfer, allows the orthopedic surgeon direct visualization of the fracture site as the fixator is placed and eliminates the need for placement of the fixation device through the transplanted tissue. Tissue expansion or suction lipectomy are sometimes needed to optimize the clinical result.
- Published
- 1993
44. Salvage of Wounds Following Failed Tissue Transplantation
- Author
-
Bernard S. Alpert, Fouad J. Samaha, Harry J. Buncke, Alfonso Oliva, Gregory M. Buncke, William C. Lineaweaver, Rebecca L. Jackson, and Peter P. Siko
- Subjects
Adult ,Male ,Reoperation ,Microsurgery ,medicine.medical_specialty ,Adolescent ,medicine.medical_treatment ,Surgical Flaps ,Postoperative Complications ,medicine ,Humans ,Child ,Aged ,Retrospective Studies ,Wound Healing ,business.industry ,Graft Survival ,Retrospective cohort study ,Middle Aged ,Autotransplantation ,Surgery ,Transplantation ,Tissue transplantation ,Plastic surgery ,surgical procedures, operative ,Child, Preschool ,Female ,Complication ,business - Abstract
During the past 20 years, 972 microvascular transplantations have been performed for 783 patients, with an overall failure rate of 6.2 percent. Fifty-four of the 60 failed transplantations were available for long-term follow-up and were retrospectively reviewed with respect to the original indications for transplantation, the number, and the type of salvage procedures performed following transplant failure. This study illustrates that the choice of salvage procedures performed following transplant failure depends on the original indications, the location, and the severity of the resultant wound. Failure following transplantation for coverage of contour defects or unstable wounds can often be managed by non-microsurgical methods. In contrast, when the indications for transplantation included the transfer of specialized tissues for thumb or digit reconstruction, the restoration of motor or sensory function, or the coverage of a limb-threatening wound, requirements for reconstruction could be satisfied only by a second successful tissue transplant. Eighteen of the 54 cases underwent an additional transplantation, with an 89 percent success rate.
- Published
- 1993
45. A comparison of three microindentation hardness scales at low and ultralow loads
- Author
-
Peter J. Blau, James R. Keiser, and Rebecca L. Jackson
- Subjects
Materials science ,Mechanical Engineering ,Metallurgy ,Condensed Matter Physics ,Indentation hardness ,Hardness ,Mechanics of Materials ,Indentation ,Vickers hardness test ,Knoop hardness test ,Projected area ,General Materials Science ,Contact area ,Penetration depth - Abstract
Indentation hardness tests were performed on thick, fine-grained, electro-formed deposits of copper and nickel using Knoop, Vickers, and Berkovich indenters. The latter type of indenter was used for shallow penetrations (85–1750nm), and results are reported in terms of nanoscale hardness (NH) numbers. Knoop and Vickers indenters were used with applied loads of between 0.15 and 0.98 N, and at the lowest load, produced indentation depths comparable to the larger ones obtained with the Berkovich indenter. The NH numbers became very sensitive to penetration depth when the penetration depth was less than certain critical values. NH numbers for Cu and Ni were higher than those for Knoop and Vickers testing at comparable penetration depths. Applying indenter area function corrections to calculate hardness numbers (i.e., considering projected area versus facet contact area) resulted in a closer correlation between microhardness and nanohardness scales; however, changes in the tip shape because of wear or other imperfections can lead to inaccurate calculation of NH numbers at the lowest loads. Results also suggest that the interconversion of lowload hardness numbers from one scale to another can be material-dependent.
- Published
- 1993
46. Behavioral discriminators of sexual sadism and paraphilia nonconsent in a sample of civilly committed sexual offenders
- Author
-
Rebecca L. Jackson and Henry J. Richards
- Subjects
Male ,Coercion ,Sexual Behavior ,Sadistic personality disorder ,Poison control ,Sexual Sadism ,Suicide prevention ,Risk Assessment ,Pathology and Forensic Medicine ,Diagnosis, Differential ,Arts and Humanities (miscellaneous) ,Injury prevention ,medicine ,Humans ,Applied Psychology ,Paraphilic Disorders ,Prisoners ,Sex Offenses ,Humiliation ,Human factors and ergonomics ,Sadism ,Forensic Psychiatry ,medicine.disease ,Paraphilia ,Psychology ,Social psychology ,Clinical psychology - Abstract
Sexual sadism continues to be a diagnosis fraught with controversy concerning its reliability and validity. The current study examined the offense behavior of 39 civilly committed sexual offenders diagnosed with sexual sadism compared to a group of similarly committed individual diagnoses with Paraphilia Not Otherwise Specified (NOS)— Nonconsent. In addition, offense elements common across studies of sadism were identified. Specifically, offense behaviors including victim abduction and confinement, beating the victim during a sexual assault, and using restraints were indicative of sexual sadism across studies. In addition, this study found the use of noncontingent threats as well as gestures of mutuality to be more common among sadists. Results overall suggest that sadistic acts may be more characterized by humiliation of the victim through the exercise of power and control than by the use of violence. Differential diagnosis between Sexual Sadism and Paraphilia NOS—Nonconsent, may be aided by close inspection of offense behavior.
- Published
- 2010
47. Detection strategies for malingering with the Miller Forensic Assessment of Symptoms Test: a confirmatory factor analysis of its underlying dimensions
- Author
-
Jason Gabel, Rebecca L. Jackson, Holly A. Miller, Michael J. Vitacco, Richard Rogers, and Craig S. Neumann
- Subjects
Adult ,Male ,Malingering ,Adolescent ,Construct validity ,Forensic Psychiatry ,Middle Aged ,Factor structure ,medicine.disease ,Confirmatory factor analysis ,Insanity Defense ,Test (assessment) ,Forensic science ,Clinical Psychology ,Structured interview ,medicine ,Humans ,Female ,Mental Competency ,Psychology ,Applied Psychology ,Clinical psychology ,Aged - Abstract
Two of the most widely used measures for the assessment of malingering in forensic populations are the Miller Forensic Assessment of Symptoms Test (M-FAST) and the Structured Interview of Reported Symptoms (SIRS). The underlying dimensions of the SIRS have been well established in the literature, but the structure of the M-FAST remains relatively untested. Understanding of its dimensions is critical for construct validity and guiding its proper use. Confirmatory factor analysis was used to provide evidence of a single parsimonious malingering factor to account for the covariation of the M-FAST items in a sample of 244 forensic patients. In addition, the model was cross-validated with an independent sample of 210 forensic patients. Finally, the M-FAST factor was modeled in conjunction with two factors of the SIRS. Results provide further validation of the underlying detection strategy found in the M-FAST.
- Published
- 2008
48. Ealuations for the Ciil Commitment of Sexual Offenders
- Author
-
Henry J. Richards and Rebecca L. Jackson
- Subjects
medicine.medical_specialty ,Recidivism ,medicine ,Treatment Effectiveness Evaluation ,Sex offense ,Criminology ,Violent crime ,Psychology ,Risk assessment ,Civil law (common law) - Published
- 2007
49. Impulsivity, anger, and psychopathy: the moderating effect of ethnicity
- Author
-
Rebecca L. Jackson, Michael J. Vitacco, and Craig S. Neumann
- Subjects
Adult ,Male ,Personality Inventory ,Psychometrics ,media_common.quotation_subject ,Psychopathy ,Poison control ,Latent variable ,Anger ,Violence ,Impulsivity ,Social Environment ,White People ,Developmental psychology ,Risk Factors ,medicine ,Humans ,Association (psychology) ,Latent variable model ,media_common ,Psychopathy Checklist ,Inpatients ,Reproducibility of Results ,Antisocial Personality Disorder ,medicine.disease ,Black or African American ,Psychiatry and Mental health ,Clinical Psychology ,Impulsive Behavior ,medicine.symptom ,Psychology ,Clinical psychology - Abstract
The present research tested the four-factor Psychopathy Checklist: Screening Version (PCL:SV) latent variable model for structural invariance across ethnicity in a large sample of civil psychiatric patients. In addition, it also examined how Barratt (1994) impulsivity and Novaco (1994) anger latent variables were related to the psychopathy dimensions within and across ethnicity. The data were analyzed with Mplus (Muthen & Muthen, 2001), and results indicated that the four-factor model was invariant across Caucasian and African American males in terms of both item factor loadings and thresholds. However, differential relations between the external correlates and the psychopathy dimensions were found across groups, suggesting that the association between impulsivity and psychopathy may be moderated by ethnicity.
- Published
- 2007
50. Diagnostic and risk profiles among civilly committed sex offenders in Washington State
- Author
-
Henry J. Richards and Rebecca L. Jackson
- Subjects
Adult ,Male ,Washington ,medicine.medical_specialty ,media_common.quotation_subject ,Psychopathy ,Legislation ,Risk profile ,Risk Assessment ,Pathology and Forensic Medicine ,Arts and Humanities (miscellaneous) ,State (polity) ,Risk Factors ,medicine ,Humans ,0501 psychology and cognitive sciences ,Psychiatry ,Applied Psychology ,media_common ,Aged ,Mental Disorders ,050901 criminology ,05 social sciences ,Sex Offenses ,Middle Aged ,medicine.disease ,Commitment of Mentally Ill ,Female ,0509 other social sciences ,Psychology ,050104 developmental & child psychology - Abstract
Since 1990, 17 states have passed legislation allowing for the civil commitment of a small number of sex offenders who are deemed at a particularly high risk for reoffense. Despite the very public and controversial nature of these laws, little is known about the individuals who are detained pursuant to them. The current article presents data on 190 civilly committed and detained sexually violent predators in Washington State. These sexual offenders suffer from a variety of mental illnesses. The modal offender is diagnosed with both an Axis I and an Axis II disorder. Furthermore, these offenders are at moderate to high risk for reoffense and present with a significant degree of psychopathy.
- Published
- 2007
Catalog
Discovery Service for Jio Institute Digital Library
For full access to our library's resources, please sign in.