27 results on '"Keage, Hannah A. D."'
Search Results
2. Frequency of LATE neuropathologic change across the spectrum of Alzheimer’s disease neuropathology: combined data from 13 community-based or population-based autopsy cohorts
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Nelson, Peter T., Brayne, Carol, Flanagan, Margaret E., Abner, Erin L., Agrawal, Sonal, Attems, Johannes, Castellani, Rudolph J., Corrada, Maria M., Cykowski, Matthew D., Di, Jing, Dickson, Dennis W., Dugger, Brittany N., Ervin, John F., Fleming, Jane, Graff-Radford, Jonathan, Grinberg, Lea T., Hokkanen, Suvi R. K., Hunter, Sally, Kapasi, Alifiya, Kawas, Claudia H., Keage, Hannah A. D., Keene, C. Dirk, Kero, Mia, Knopman, David S., Kouri, Naomi, Kovacs, Gabor G., Labuzan, Sydney A., Larson, Eric B., Latimer, Caitlin S., Leite, Renata E. P., Matchett, Billie J., Matthews, Fiona E., Merrick, Richard, Montine, Thomas J., Murray, Melissa E., Myllykangas, Liisa, Nag, Sukriti, Nelson, Ruth S., Neltner, Janna H., Nguyen, Aivi T., Petersen, Ronald C., Polvikoski, Tuomo, Reichard, R. Ross, Rodriguez, Roberta D., Suemoto, Claudia K., Wang, Shih-Hsiu J., Wharton, Stephen B., White, Lon, and Schneider, Julie A.
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- 2022
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3. Emotional empathy across adulthood: A meta-analytic review.
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Jarvis, Amy L., primary, Wong, Stephanie, additional, Weightman, Michael, additional, Ghezzi, Erica S., additional, Sharman, Rhianna L. S., additional, and Keage, Hannah A. D., additional
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- 2024
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4. Test-retest reliability of spectral parameterization by 1/f characterization using SpecParam
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McKeown, Daniel J, primary, Finley, Anna J, additional, Kelley, Nicholas J, additional, Cavanagh, James F, additional, Keage, Hannah A D, additional, Baumann, Oliver, additional, Schinazi, Victor R, additional, Moustafa, Ahmed A, additional, and Angus, Douglas J, additional
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- 2023
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5. Evidence for a multidimensional account of cognitive and affective theory of mind: A state-trace analysis
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Jarvis, Amy L., primary, Keage, Hannah A. D., additional, Wong, Stephanie, additional, Weightman, Michael, additional, and Stephens, Rachel G., additional
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- 2023
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6. The effects of anticholinergic medications on cognition in children: a systematic review and meta-analysis
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Ghezzi, Erica, Chan, Michelle, Kalisch Ellett, Lisa M., Ross, Tyler J., Richardson, Kathryn, Ho, Jun Ni, Copley, Dayna, Steele, Claire, and Keage, Hannah A. D.
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- 2021
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7. What do young Australian adults know about modifiable risk factors for dementia?
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Keage, Hannah A. D., Villani, Gabrielle, and Hutchinson, Amanda D.
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- 2021
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8. Test-retest reliability of spectral parameterization by 1/f characterization using SpecParam.
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McKeown, Daniel J, Finley, Anna J, Kelley, Nicholas J, Cavanagh, James F, Keage, Hannah A D, Baumann, Oliver, Schinazi, Victor R, Moustafa, Ahmed A, and Angus, Douglas J
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- 2024
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9. Test-retest reliability of spectral parameterization by 1/fcharacterization usingSpecParam
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McKeown, Daniel J., primary, Finley, Anna J., additional, Kelley, Nicholas, additional, Cavanagh, James F., additional, Keage, Hannah A. D., additional, Baumann, Oliver, additional, Schinazi, Victor R., additional, Moustafa, Ahmed A., additional, and Angus, Douglas J, additional
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- 2023
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10. Corrigendum: Twenty-four-hour time-use composition and cognitive function in older adults: cross-sectional findings of the ACTIVate study
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Mellow, Maddison L., Dumuid, Dorothea, Wade, Alexandra T., Stanford, Ty, Olds, Timothy S., Karayanidis, Frini, Hunter, Montana, Keage, Hannah A. D., Dorrian, Jillian, Goldsworthy, Mitchell R., and Smith, Ashleigh E.
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Behavioral Neuroscience ,Psychiatry and Mental health ,Neuropsychology and Physiological Psychology ,Neurology ,Biological Psychiatry - Published
- 2023
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11. The prevalence, correlation, and co-occurrence of neuropathology in old age: harmonisation of 12 measures across six community-based autopsy studies of dementia
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Nichols, Emma, primary, Merrick, Richard, additional, Hay, Simon I, additional, Himali, Dibya, additional, Himali, Jayandra J, additional, Hunter, Sally, additional, Keage, Hannah A D, additional, Latimer, Caitlin S, additional, Scott, Matthew R, additional, Steinmetz, Jaimie D, additional, Walker, Jamie M, additional, Wharton, Stephen B, additional, Wiedner, Crystal D, additional, Crane, Paul K, additional, Keene, C Dirk, additional, Launer, Lenore J, additional, Matthews, Fiona E, additional, Schneider, Julie, additional, Seshadri, Sudha, additional, White, Lon, additional, Brayne, Carol, additional, and Vos, Theo, additional
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- 2023
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12. Twenty-four-hour time-use composition and cognitive function in older adults: Cross-sectional findings of the ACTIVate study
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Mellow, Maddison L., primary, Dumuid, Dorothea, additional, Wade, Alexandra T., additional, Stanford, Ty, additional, Olds, Timothy S., additional, Karayanidis, Frini, additional, Hunter, Montana, additional, Keage, Hannah A. D., additional, Dorrian, Jillian, additional, Goldsworthy, Mitchell R., additional, and Smith, Ashleigh E., additional
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- 2022
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13. How do predisposing factors differ between delirium motor subtypes? A systematic review and meta-analysis
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Ghezzi, Erica S, primary, Greaves, Danielle, additional, Boord, Monique S, additional, Davis, Daniel, additional, Knayfati, Sara, additional, Astley, Jack M, additional, Sharman, Rhianna L S, additional, Goodwin, Stephanie I, additional, and Keage, Hannah A D, additional
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- 2022
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14. Twenty-four-hour time-use composition and cognitive function in older adults: cross-sectional findings of the ACTIVate study.
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Mellow, Maddison L., Dumuid, Dorothea, Wade, Alexandra T., Stanford, Ty, Olds, Timothy S., Karayanidis, Frini, Hunter, Montana, Keage, Hannah A. D., Dorrian, Jillian, Goldsworthy, Mitchell R., and Smith, Ashleigh E.
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COGNITIVE ability ,OLDER people ,COGNITIVE processing speed ,SLEEP quality ,RECOGNITION (Psychology) - Abstract
Introduction: Physical activity, sedentary behaviour and sleep are associated with cognitive function in older adults. However, these behaviours are not independent, but instead make up exclusive and exhaustive components of the 24-h day. Few studies have investigated associations between 24-h time-use composition and cognitive function in older adults. Of these, none have considered how the quality of sleep, or the context of physical activity and sedentary behaviour may impact these relationships. This study aims to understand how 24-h time-use composition is associated with cognitive function across a range of domains in healthy older adults, and whether the level of recreational physical activity, amount of television (TV) watching, or the quality of sleep impact these potential associations. Methods: 384 healthy older adults (age 65.5 ± 3.0 years, 68% female, 63% non-smokers, mean education = 16.5 ± 3.2 years) participated in this study across two Australian sites (Adelaide, n = 207; Newcastle, n = 177). Twentyfour-hour time-use composition was captured using triaxial accelerometry, measured continuously across 7 days. Total time spent watching TV per day was used to capture the context of sedentary behaviours, whilst total time spent in recreational physical activity was used to capture the context of physical activity (i.e., recreational accumulation of physical activity vs. other contexts). Sleep quality was measured using a single item extracted from the Pittsburgh Sleep Quality Index. Cognitive function was measured using a global cognition index (Addenbrooke’s Cognitive Examination III) and four cognitive domain composite scores (derived from five tests of the Cambridge Neuropsychological Test Automated Battery: Paired Associates Learning; One Touch Stockings of Cambridge; Multitasking; Reaction Time; Verbal Recognition Memory). Pairwise correlations were used to describe independent relationships between time use variables and cognitive outcomes. Then, compositional data analysis regression methods were used to quantify associations between cognition and 24-h time-use composition. Results: After adjusting for covariates and false discovery rate there were no significant associations between time-use composition and global cognition, long-term memory, short-term memory, executive function, or processing speed outcomes, and no significant interactions between TV watching time, recreational physical activity engagement or sleep quality and time-use composition for any cognitive outcomes. Discussion: The findings highlight the importance of considering all activities across the 24-h day against cognitive function in older adults. Future studies should consider investigating these relationships longitudinally to uncover temporal effects. [ABSTRACT FROM AUTHOR]
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- 2023
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15. Burden of mood symptoms and disorders in implantable cardioverter defibrillator patients: a systematic review and meta-analysis of 39 954 patients.
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Ghezzi, Erica S, Sharman, Rhianna L S, Selvanayagam, Joseph B, Psaltis, Peter J, Sanders, Prashanthan, Astley, Jack M, Knayfati, Sara, Batra, Vrinda, and Keage, Hannah A D
- Abstract
Aims Implantable cardioverter defibrillators (ICDs) prevent sudden cardiac death. Anxiety, depression, and post-traumatic stress disorder (PTSD) are underappreciated symptoms. We aimed to systematically synthesize prevalence estimates of mood disorders and symptom severities, pre- and post-ICD insertions. Comparisons were made with control groups, as well as within ICD patients by indication (primary vs. secondary), sex, shock status, and over time. Methods Databases (Medline, PsycINFO, PubMed, and Embase) were searched without limits from inception to 31 August 2022; 4661 articles were identified, 109 (39 954 patients) of which met criteria. Results Random-effects meta-analyses revealed clinically relevant anxiety in 22.58% (95%CI 18.26–26.91%) of ICD patients across all timepoints following insertion and depression in 15.42% (95%CI 11.90–18.94%). Post-traumatic stress disorder was seen in 12.43% (95%CI 6.90–17.96%). Rates did not vary relative to indication group. Clinically relevant anxiety and depression were more likely in ICD patients who experienced shocks [anxiety odds ratio (OR) = 3.92 (95%CI 1.67–9.19); depression OR = 1.87 (95%CI 1.34–2.59)]. Higher symptoms of anxiety were seen in females than males post-insertion [Hedges' g = 0.39 (95%CI 0.15–0.62)]. Depression symptoms decreased in the first 5 months post-insertion [Hedges' g = 0.13 (95%CI 0.03–0.23)] and anxiety symptoms after 6 months [Hedges' g = 0.07 (95%CI 0–0.14)]. Conclusion Depression and anxiety are highly prevalent in ICD patients, especially in those who experience shocks. Of particular concern is the prevalence of PTSD following ICD implantation. Psychological assessment, monitoring, and therapy should be offered to ICD patients and their partners as part of routine care. [ABSTRACT FROM AUTHOR]
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- 2023
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16. sj-pdf-1-jiv-10.1177_0886260520943712 ��� Supplemental material for Intimate Partner Violence and Risk for Mortality and Incident Dementia in Older Women
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Cations, Monica, Keage, Hannah A. D., Laver, Kate E., Byles, Julie, and Loxton, Deborah
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160299 Criminology not elsewhere classified ,FOS: Law - Abstract
Supplemental material, sj-pdf-1-jiv-10.1177_0886260520943712 for Intimate Partner Violence and Risk for Mortality and Incident Dementia in Older Women by Monica Cations, Hannah A. D. Keage, Kate E. Laver, Julie Byles and Deborah Loxton in Journal of Interpersonal Violence
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- 2022
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17. DelIrium VULnerability in GEriatrics (DIVULGE) study: a protocol for a prospective observational study of electroencephalogram associations with incident postoperative delirium
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Boord, Monique S, primary, Davis, Daniel H J, additional, Psaltis, Peter J, additional, Coussens, Scott W, additional, Feuerriegel, Daniel, additional, Garrido, Marta I, additional, Bourke, Alice, additional, and Keage, Hannah A D, additional
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- 2021
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18. Intimate Partner Violence and Risk for Mortality and Incident Dementia in Older Women.
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Cations, Monica, Keage, Hannah A. D., Laver, Kate E., Byles, Julie, and Loxton, Deborah
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WELL-being , *CONFIDENCE intervals , *ANALYSIS of variance , *INTIMATE partner violence , *RISK assessment , *SOCIOECONOMIC factors , *DEMENTIA , *RESEARCH funding , *CHI-squared test , *LONGITUDINAL method , *WOMEN'S health - Abstract
The aim of this study was to assess the long-term risk for mortality and incident dementia associated with exposure to intimate partner violence (IPV) at any time over the life course. Data were taken from the Australian Longitudinal Study of Women's Health, a population-based cohort study initiated in 1996. Analysis is based on 12,085 community-dwelling women aged 70 to 75 years at baseline from all states and territories. Self-reported exposure to violence was separated into historical (any time before baseline), current (past 12 months), or both. Date of death was obtained from the National Death Index, and dementia status was self-reported or obtained from administrative data. We modeled mortality risk using Cox regression, and risk for incident dementia using Fine-Gray proportional hazards modeling with death as a competing risk. Follow up continued to December 2017. At baseline, 728 women (6.0%) reported historical IPV, 121 (1.0%) reported current violence, and 38 reported both (0.3%). Historical IPV increased 20-year mortality risk after controlling for demographic, socioeconomic, and lifestyle variables (hazard ratio 1.10, 95% confidence interval = [1.00, 1.20]). There was no relationship between current violence and mortality (hazard ratio 1.04, 95% confidence interval = [0.85, 1.29]). There was also no association between IPV and risk for incident dementia (hazard ratio 1.02, 95% confidence interval = [0.89, 1.17]). Older women who self-report exposure to IPV over the lifespan die significantly earlier than women who do not. Further research that considers the mediating role of psychological trauma is needed to examine the relationship between IPV and dementia. [ABSTRACT FROM AUTHOR]
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- 2022
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19. Twenty-four-hour time-use composition and cognitive function in older adults: Cross-sectional findings of the ACTIVate study
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Maddison L. Mellow, Dorothea Dumuid, Alexandra T. Wade, Ty Stanford, Timothy S. Olds, Frini Karayanidis, Montana Hunter, Hannah A. D. Keage, Jillian Dorrian, Mitchell R. Goldsworthy, Ashleigh E. Smith, Mellow, Maddison L, Dumuid, Dorothea, Wade, Alexandra T, Stanford, Ty, Olds, Timothy S, Karayanidis, Frini, Hunter, Montana, Keage, Hannah A D, Dorrian, Jillian, Goldsworthy, Mitchell R, and Smith, Ashleigh E
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Behavioral Neuroscience ,Psychiatry and Mental health ,Neuropsychology and Physiological Psychology ,Neurology ,ageing ,sedentary behaviour ,physical activity ,time use ,sleep ,Biological Psychiatry ,cognitive function - Abstract
IntroductionPhysical activity, sedentary behaviour and sleep are associated with cognitive function in older adults. However, these behaviours are not independent, but instead make up exclusive and exhaustive components of the 24-h day. Few studies have investigated associations between 24-h time-use composition and cognitive function in older adults. Of these, none have considered how the quality of sleep, or the context of physical activity and sedentary behaviour may impact these relationships. This study aims to understand how 24-h time-use composition is associated with cognitive function across a range of domains in healthy older adults, and whether the level of recreational physical activity, amount of television (TV) watching, or the quality of sleep impact these potential associations.Methods384 healthy older adults (age 65.5 ± 3.0 years, 68% female, 63% non-smokers, mean education = 16.5 ± 3.2 years) participated in this study across two Australian sites (Adelaide, n = 207; Newcastle, n = 177). Twenty-four-hour time-use composition was captured using triaxial accelerometry, measured continuously across 7 days. Total time spent watching TV per day was used to capture the context of sedentary behaviours, whilst total time spent in recreational physical activity was used to capture the context of physical activity (i.e., recreational accumulation of physical activity vs. other contexts). Sleep quality was measured using a single item extracted from the Pittsburgh Sleep Quality Index. Cognitive function was measured using a global cognition index (Addenbrooke’s Cognitive Examination III) and four cognitive domain composite scores (derived from five tests of the Cambridge Neuropsychological Test Automated Battery: Paired Associates Learning; One Touch Stockings of Cambridge; Multitasking; Reaction Time; Verbal Recognition Memory). Pairwise correlations were used to describe independent relationships between time use variables and cognitive outcomes. Then, compositional data analysis regression methods were used to quantify associations between cognition and 24-h time-use composition.ResultsAfter adjusting for covariates and false discovery rate there were no significant associations between time-use composition and global cognition, long-term memory, short-term memory, executive function, or processing speed outcomes, and no significant interactions between TV watching time, recreational physical activity engagement or sleep quality and time-use composition for any cognitive outcomes.DiscussionThe findings highlight the importance of considering all activities across the 24-h day against cognitive function in older adults. Future studies should consider investigating these relationships longitudinally to uncover temporal effects.
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- 2022
20. Neurophysiological patterns reflecting vulnerability to delirium subtypes: a resting-state EEG and event-related potential study.
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Boord MS, Feuerriegel D, Coussens SW, Davis DHJ, Psaltis PJ, Garrido MI, Bourke A, and Keage HAD
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Delirium is a common and acute neurocognitive disorder in older adults associated with increased risk of dementia and death. Understanding the interaction between brain vulnerability and acute stressors is key to delirium pathophysiology, but the neurophysiology of delirium vulnerability is not well defined. This study aimed to identify pre-operative resting-state EEG and event-related potential markers of incident delirium and its subtypes in older adults undergoing elective cardiac procedures. This prospective observational study included 58 older participants (mean age = 75.6 years, SD = 7.1; 46 male/12 female); COVID-19 restrictions limited recruitment. Baseline assessments were conducted in the weeks before elective cardiac procedures and included a 4-min resting-state EEG recording (2-min eyes open and 2-min eyes closed), a 5-min frequency auditory oddball paradigm recording, and cognitive and depression examinations. Periodic peak power, peak frequency and bandwidth measures, and aperiodic offsets and exponents were derived from resting-state EEG data. Event-related potentials were measured as mean component amplitudes (first positive component, first negative component, early third positive component, and mismatch negativity) following standard and deviant auditory stimuli. Incident delirium occurred in 21 participants: 10 hypoactive, 6 mixed, and 5 hyperactive. Incident hyperactive delirium was associated with higher pre-operative eyes open ( P = 0.045, d = 1.0) and closed ( P = 0.036, d = 1.0) aperiodic offsets. Incident mixed delirium was associated with significantly larger pre-operative first positive component amplitudes to deviants ( P = 0.037, d = 1.0) and larger third positive component amplitudes to standards ( P = 0.025, d = 1.0) and deviants ( P = 0.041, d = 0.9). Other statistically non-significant but moderate-to-large effects were observed in relation to all subtypes. We report evidence of neurophysiological markers of delirium risk weeks prior to elective cardiac procedures in older adults. Despite being underpowered due to COVID-19-related recruitment impacts, these findings indicate pre-operative dysfunction in neural excitation/inhibition balance associated with different delirium subtypes and warrant further investigation on a larger scale., Competing Interests: The authors report no competing interests., (© The Author(s) 2024. Published by Oxford University Press on behalf of the Guarantors of Brain.)
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- 2024
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21. Resting EEG power spectra across middle to late life: associations with age, cognition, APOE-ɛ4 carriage, and cardiometabolic burden.
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Smith AE, Chau A, Greaves D, Keage HAD, and Feuerriegel D
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- Aged, Aged, 80 and over, Humans, Apolipoproteins E, Cognition, Electroencephalography, Middle Aged, Apolipoprotein E4 genetics, Cardiovascular Diseases
- Abstract
We investigated how resting electroencephalography (EEG) measures are associated with risk factors for late-life cognitive impairment and dementia, including age, apolipoprotein E ɛ4 (APOE-ɛ4) carriage, and cardiometabolic burden. Resting EEG was recorded from 86 adults (50-80 years of age). Participants additionally completed the Addenbrooke's Cognitive Examination (ACE) III and had blood drawn to assess APOE-ɛ4 carriage status and cardiometabolic burden. EEG power spectra were decomposed into sources of periodic and aperiodic activity to derive measures of aperiodic component slope and alpha (7-14 Hz) and beta (15-30 Hz) peak power and peak frequency. Alpha and beta peak power measures were corrected for aperiodic activity. The aperiodic component slope was correlated with ACE-III scores but not age. Alpha peak frequency decreased with age. Individuals with higher cardiometabolic burden had lower alpha peak frequencies and lower beta peak power. APOE-ɛ4 carriers had lower beta peak frequencies. Our findings suggest that the slope of the aperiodic component of resting EEG power spectra is more closely associated with measures of cognitive performance rather than chronological age in older adults., Competing Interests: Disclosure statement The authors report no conflicts of interest., (Copyright © 2023 Elsevier Inc. All rights reserved.)
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- 2023
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22. Font disfluency and reading performance in children: An event-related potential study.
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Astley J, Keage HAD, Kelson E, Callahan R, Hofmann J, Thiessen M, Kohler M, and Coussens S
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- Adult, Humans, Child, Adolescent, Electroencephalography, Brain, Semantics, Reading, Evoked Potentials physiology
- Abstract
Expert adult readers process fluent and disfluent fonts differently, at both early perceptual and late higher-order processing stages. This finding has been interpreted as reflecting the more difficult to read disfluent fonts requiring greater neural resources. We aimed to investigate whether neural activity is affected by font disfluency in pre-adolescent readers, and to determine if neural responses are related to reading performance. Thirty-three participants between 8 and 12 years old completed two one-back tasks using letter and word stimuli, where font was manipulated (fluent versus disfluent stimuli), during which electroencephalography was recorded. Event related potentials (ERPs) were calculated relative to non-target stimuli for both tasks. The Woodcock Johnson III Tests of Achievement reading specific tests, and the Castles and Coltheart Test 2 were also collected. Font (fluent versus disfluent stimuli) did not consistently affect neural activity during both the letter and word tasks. Fluent stimuli elicited greater late activity (450-600 ms) than disfluent stimuli during the word task, suggesting easy-to-read fonts may enhance the maintenance of words in visual working memory and facilitate the retrieval of semantic information. However, reading performance was not associated with neural disfluency effects, suggesting that pre-adolescents are still at an early developmental reading period. Font manipulation may be a useful way to track developmental reading trajectories in the brain., Competing Interests: Declaration of Competing Interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2023 Elsevier Inc. All rights reserved.)
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- 2023
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23. Burden of mood symptoms and disorders in implantable cardioverter defibrillator patients: a systematic review and meta-analysis of 39 954 patients.
- Author
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Ghezzi ES, Sharman RLS, Selvanayagam JB, Psaltis PJ, Sanders P, Astley JM, Knayfati S, Batra V, and Keage HAD
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- Female, Male, Humans, Anxiety diagnosis, Anxiety epidemiology, Databases, Factual, Death, Sudden, Cardiac epidemiology, Death, Sudden, Cardiac prevention & control, Odds Ratio, Defibrillators, Implantable
- Abstract
Aims: Implantable cardioverter defibrillators (ICDs) prevent sudden cardiac death. Anxiety, depression, and post-traumatic stress disorder (PTSD) are underappreciated symptoms. We aimed to systematically synthesize prevalence estimates of mood disorders and symptom severities, pre- and post-ICD insertions. Comparisons were made with control groups, as well as within ICD patients by indication (primary vs. secondary), sex, shock status, and over time., Methods: Databases (Medline, PsycINFO, PubMed, and Embase) were searched without limits from inception to 31 August 2022; 4661 articles were identified, 109 (39 954 patients) of which met criteria., Results: Random-effects meta-analyses revealed clinically relevant anxiety in 22.58% (95%CI 18.26-26.91%) of ICD patients across all timepoints following insertion and depression in 15.42% (95%CI 11.90-18.94%). Post-traumatic stress disorder was seen in 12.43% (95%CI 6.90-17.96%). Rates did not vary relative to indication group. Clinically relevant anxiety and depression were more likely in ICD patients who experienced shocks [anxiety odds ratio (OR) = 3.92 (95%CI 1.67-9.19); depression OR = 1.87 (95%CI 1.34-2.59)]. Higher symptoms of anxiety were seen in females than males post-insertion [Hedges' g = 0.39 (95%CI 0.15-0.62)]. Depression symptoms decreased in the first 5 months post-insertion [Hedges' g = 0.13 (95%CI 0.03-0.23)] and anxiety symptoms after 6 months [Hedges' g = 0.07 (95%CI 0-0.14)]., Conclusion: Depression and anxiety are highly prevalent in ICD patients, especially in those who experience shocks. Of particular concern is the prevalence of PTSD following ICD implantation. Psychological assessment, monitoring, and therapy should be offered to ICD patients and their partners as part of routine care., (© The Author(s) 2023. Published by Oxford University Press on behalf of the European Society of Cardiology.)
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- 2023
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24. The perceived mental effort of everyday activities in older adults.
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Olds TS, Dumuid D, Mellow ML, Keage HAD, Wade AT, Hunter M, Karayanidis F, and Smith AE
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- Aged, Female, Humans, Male, Activities of Daily Living, Aging, Middle Aged, Cognition, Mental Recall
- Abstract
People's perceptions of the mental effort required for everyday activities may drive variation in the relationships between lifestyles and cognitive ability. We asked n = 259 healthy older adults aged 60 to 70 years (90 males, 169 females) to provide a rating of the Perceived Mental Effort (PME) for each activity instance they recalled over a 48-h period as part of a time-use recall. PME was rated on a 9-point scale from "very, very low" (score of 1) to "very, very high" (score of 9). Across the entire sample, participants rated a total of 196 different activities and 17,433 activity instances. The mean PME for individual activities was 3.50 ± 1.58. PMEs varied significantly by activity domain, with highest ratings being for Work (5.48 ± 1.72) and the lowest for Self-Care (2.89 ± 0.98). In multivariate analyses, PME ratings were higher in males than females (+0.30), PMEs were higher later in the day, increased with task duration, and decreased with age (all p < 0.0001). Time-weighted average individual PMEs across the two days of recall ranged from 1.86 to 6.50, and were 0.3 units higher for males, but unrelated to age. Repeated intra-individual PME ratings for the same activity were very reliable (ICC = 0.995, mean absolute difference = 0.03 ± 0.17). PMEs show promise as a reliable measure of mental effort., Competing Interests: Declaration of competing interest None., (Copyright © 2022. Published by Elsevier Inc.)
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- 2022
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25. Blood pressure variability and structural brain changes: a systematic review.
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Gutteridge DS, Tully PJ, Ghezzi ES, Jamadar S, Smith AE, Commerford T, and Keage HAD
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- Blood Pressure physiology, Blood Pressure Determination methods, Brain diagnostic imaging, Female, Humans, Pregnancy, Dementia diagnostic imaging, Hypertension
- Abstract
Background: Blood pressure variability (BPV) has been linked with cognitive impairment and dementia. However, the pathophysiological mechanisms by which BPV affects cognition are unclear. This systematic review aims to assess the links between different BPV measures and white and grey matter structures., Methods and Results: The following databases were searched from inception through to January 2021; EMBASE, MEDLINE, EMCARE and SCOPUS. Studies that reported on the relationship between within-individual BPV (short, medium or long-term variability) or a circadian blood pressure (BP) measurement and MRI assessed brain structures were included. Overall, 20 studies met the criteria and were included, of which 11 studies looked at short-term BPV, eight articles investigated visit-to-visit BPV and one study looked at a compositional BPV measurement. Due to heterogeneity in study samples, meta-analysis was not possible. Across the included studies, associations between MRI indices and BP dipping patterns were mixed; higher long-term BPV and higher sleep systolic BPV was found to be associated with lower whole brain volume and hippocampal volume., Conclusion: Increased BPV, in particular systolic long-term and systolic night-time BPV, appears to be associated with lower brain volume and hippocampal volume. This highlights the adverse effect that increased BPV has upon the brain, potentially contributing to cognitive decline, including dementia, in late-life., (Copyright © 2022 Wolters Kluwer Health, Inc. All rights reserved.)
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- 2022
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26. The neuropsychological profile of delirium vulnerability: A systematic review and meta-analysis.
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Ghezzi ES, Ross TJ, Sharman R, Davis D, Boord MS, Thanabalan T, Thomas J, and Keage HAD
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- Aged, Cognition, Humans, Neuropsychological Tests, Cognition Disorders, Cognitive Dysfunction, Delirium
- Abstract
Delirium is a common neurocognitive disorder in hospitalised older adults with substantial negative consequences. Impaired global cognition is a well-established delirium risk factor. However, poor performance on attention tests and higher intra-subject variability may be more sensitive delirium risk factors, given the disorder is characterised by a fluctuating course and attentional deficits. We systematically searched databases (Embase, PsycINFO, MEDLINE) and 44 studies satisfied inclusion criteria. Random-effects meta-analysis models showed poor performance in all cognitive domains except perception was significantly associated with incident delirium. Largest effects were for orientation (g=-1.20) and construction and motor performance (g=-0.60). These effects were no longer significant in the subgroup without pre-existing cognitive impairment, where executive functions and verbal functions and language skills were associated with incident delirium. A small, non-significant association between intra-subject variability and incident delirium was found (g=0.42). Cognitive domain specific tests may be quicker and more sensitive predictors of incident delirium. This pattern of neuropsychological findings supports the proposition that vulnerability for delirium manifests as a dysfunction of whole-brain information integration., (Copyright © 2021 Elsevier Ltd. All rights reserved.)
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- 2022
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27. Impact of Historical Intimate Partner Violence on Wellbeing and Risk for Elder Abuse in Older Women.
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Cations M, Keage HAD, Laver KE, Byles J, and Loxton D
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- Aged, Australia epidemiology, Female, Humans, Longitudinal Studies, Prospective Studies, Risk Factors, Elder Abuse, Intimate Partner Violence
- Abstract
Objective: To assess the psychological impacts and risk for elder abuse associated with historical intimate partner violence (IPV) in older women., Design: Prospective cohort study SETTING: All Australian states and territories., Participants: A total of 12,259 women aged 70-75 years at baseline participating in the Australian Longitudinal Study of Women's Health., Measurements: Women were asked at baseline whether they had ever been in a violent relationship with a partner, and completed a comprehensive survey about their physical and psychological health every 3 years (15 years follow-up) including the Short Form-36 Mental Health subscale (SF-MH) and Vulnerability to Abuse Screening Scale (VASS). Linear mixed effects modelling with maximum likelihood estimation assessed the impact of IPV over time on the SF-MH and VASS. Risk for incident depression and experiencing physical or sexual violence over follow-up was examined using logistic regression models., Results: The 782 (6.4%) women who reported historical IPV recorded significantly poorer psychological wellbeing at all timepoints compared to those who did not report historical IPV, and were at higher risk for incident depression over follow up (adjusted odds ratio [aOR] = 1.36, 95% confidence interval [CI]:1.11-1.67). There was no significant relationship between historical IPV and self-reported exposure to physical or sexual violence in late life (aOR = 0.87, 95%CI: 0.53-1.43), but women who reported historical IPV recorded higher rates of vulnerability to abuse on the VASS., Discussion: Women who have experienced a violent relationship continue to experience negative effects into older age, highlighting the importance of clinical monitoring and ongoing support for survivors as they age., (Copyright © 2021 American Association for Geriatric Psychiatry. Published by Elsevier Inc. All rights reserved.)
- Published
- 2021
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