1. Personality Reflection in the Brain’s Intrinsic Functional Architecture Remains Elusive
- Author
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Jiří Lukavský, Jan Rydlo, Jiří Horáček, Jaroslav Tintěra, David Tomecek, Jaroslav Hlinka, Iveta Fajnerová, Renata Androvicova, and Filip Děchtěrenko
- Subjects
Male ,PsyArXiv|Neuroscience|Clinical Neuroscience ,Biological Psychology ,Social Sciences ,Statistical Inference ,Social and Behavioral Sciences ,Brain mapping ,bepress|Life Sciences|Neuroscience and Neurobiology ,0302 clinical medicine ,Mathematical and Statistical Techniques ,Neural Pathways ,Medicine and Health Sciences ,Personality and Social Contexts ,Psychology ,PsyArXiv|Social and Behavioral Sciences|Social and Personality Psychology ,Default mode network ,media_common ,Cerebral Cortex ,Brain Mapping ,Multidisciplinary ,PsyArXiv|Social and Behavioral Sciences| Social and Personality Psychology ,medicine.diagnostic_test ,Neuroscience and Neurobiology ,05 social sciences ,Statistics ,Brain ,Software Engineering ,Life Sciences ,Magnetic Resonance Imaging ,FOS: Psychology ,Physical Sciences ,Medicine ,Engineering and Technology ,Female ,bepress|Social and Behavioral Sciences|Psychology|Personality and Social Contexts ,Occipital Lobe ,Personality Assessment Inventory ,Anatomy ,Cognitive psychology ,Research Article ,Personality ,Adult ,Personality Tests ,Computer and Information Sciences ,Psychometrics ,Imaging Techniques ,Permutation ,media_common.quotation_subject ,Science ,Rest ,Neuroimaging ,Research and Analysis Methods ,050105 experimental psychology ,03 medical and health sciences ,medicine ,Humans ,0501 psychology and cognitive sciences ,Statistical Methods ,Set (psychology) ,Preprocessing ,Personality Traits ,Resting state fMRI ,Discrete Mathematics ,Biology and Life Sciences ,PsyArXiv|Social and Behavioral Sciences ,PsyArXiv|Neuroscience ,Combinatorics ,bepress|Social and Behavioral Sciences ,Functional magnetic resonance imaging ,030217 neurology & neurosurgery ,Mathematics ,Neuroscience - Abstract
In the last years, there has been a considerable increase of research into the neuroimaging correlates of inter-individual temperament and character variability-an endeavour for which the term 'personality neuroscience' was coined. Among other neuroimaging modalities and approaches, substantial work focuses on functional connectivity in resting state (rs-FC) functional magnetic resonance imaging data. In the current paper, we set out to independently query the questions asked in a highly cited study that reported a range of functional connectivity correlates of personality dimensions assessed by the widely used 'Big Five' Personality Inventory. Using a larger sample (84 subjects) and an equivalent data analysis pipeline, we obtained widely disagreeing results compared to the original study. Overall, the results were in line with the hypotheses of no relation between functional connectivity and personality, when more precise permutation-based multiple testing procedures were applied. The results demonstrate that as with other neuroimaging studies, great caution should be applied when interpreting the findings, among other reasons due to multiple testing problem involved at several levels in many neuroimaging studies. Of course, the current study results can not ultimately disprove the existence of some link between personality and brain's intrinsic functional architecture, but clearly shows that its form is very likely different and much more subtle and elusive than was previously reported.
- Published
- 2017