Original Research ARTICLE
Focusing on the differences of resting-state brain networks, using a data-driven approach to explore the functional neuroimaging characteristics of extraversion trait
- 1Second Hospital of Shanxi Medical University, China
- 2First Hospital of Shanxi Medical University, China
- 3Shanxi Provincial People's Hospital, China
- 4Beijing Anding Hospital, China
In recent years, functional magnetic resonance imaging (fMRI) has been widely used in studies that explored the personality-brain association. Researches on personality neuroscience have the potential to provide personality psychology with explanatory models – that is, why people differ from each other rather than how they differ from each other (DeYoung and Gray, 2009). As one of the most important dimensions of personality traits, extraversion is the most stable core and a universal component in personality theory. The aim of the present study was to employ a fully data-driven approach to study the brain mechanism of extraversion in a sample of 111 healthy adults. The Eysenck Personality Questionnaire (EPQ) was used to measure the personality characteristics of all the subjects. We investigated whether the subjects can be grouped into highly homogeneous communities according to the characteristics of their intrinsic connectivity networks (ICNs). The resultant subjects communities and the representative characteristics of ICNs were then associated to personality concepts. Finally, we found one ICN (salience network) whose subject community profiles exhibited significant associations with Extraversion trait.
Keywords: personality traits, resting-state fMRI;, Data-driven, salience network, Extraversion trait
Received: 21 Aug 2017;
Accepted: 13 Feb 2018.
Edited by:Habib Benali, Concordia University, Canada
Reviewed by:Pierre Bellec, Université de Montréal, Canada
Gennady Knyazev, Institute of Physiology and Basic Medicine, Russia
Copyright: © 2018 Tian, Wang, Xu, Li and Ma. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
* Correspondence: Prof. Xin Ma, Beijing Anding Hospital, Beijing, China, email@example.com