Brain network topology and personality traits: A source level magnetoencephalographic study

Personality neuroscience is focusing on the correlation between individual differences and the efficiency of large‐scale networks from the perspective of the brain as an interconnected network. A suitable technique to explore this relationship is the magnetoencephalography (MEG), but not many MEG st...

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Bibliographic Details
Published in:Scandinavian journal of psychology 2022-10, Vol.63 (5), p.495-503
Main Authors: Troisi Lopez, Emahnuel, Colonnello, Valentina, Liparoti, Marianna, Castaldi, Mauro, Alivernini, Fabio, Russo, Paolo Maria, Sorrentino, Giuseppe, Lucidi, Fabio, Mandolesi, Laura, Sorrentino, Pierpaolo
Format: Article
Language:English
Subjects:
Adult
Brain
Brain network
Caudate nucleus
Character
Cloninger
Female
Females
functional connectivity
Gender
Humans
Life Sciences
Magnetoencephalography
Male
Nervous system
Neural networks
Neurons and Cognition
Personality
Personality Inventory
Personality traits
Sex differences
Temperament
temperament and character inventory
Young Adult
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Summary:Personality neuroscience is focusing on the correlation between individual differences and the efficiency of large‐scale networks from the perspective of the brain as an interconnected network. A suitable technique to explore this relationship is the magnetoencephalography (MEG), but not many MEG studies are aimed at investigating topological properties correlated to personality traits. By using MEG, the present study aims to evaluate how individual differences described in Cloninger's psychobiological model are correlated with specific cerebral structures. Fifty healthy individuals (20 males, 30 females, mean age: 27.4 ± 4.8 years) underwent Temperament and Character Inventory examination and MEG recording during a resting state condition. High harm avoidance scores were associated with a reduced centrality of the left caudate nucleus and this negative correlation was maintained in females when we analyzed gender differences. Our data suggest that the caudate nucleus plays a key role in adaptive behavior and could be a critical node in insular salience network. The clear difference between males and females allows us to suggest that topological organization correlated to personality is highly dependent on gender. Our findings provide new insights to evaluate the mutual influences of topological and functional connectivity in neural communication efficiency and disruption as biomarkers of psychopathological traits.
ISSN:0036-5564
1467-9450
DOI:10.1111/sjop.12835