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Network Analysis of the Default Mode Network Using Functional Connectivity MRI in Temporal Lobe Epilepsy

Network Analysis of the Default Mode Network Using Functional Connectivity MRI in Temporal Lobe Epilepsy

Published on: August 5, 2014

The Big Five default brain: functional evidence.

Adriana Sampaio¹, José Miguel Soares, Joana Coutinho

¹Neuropsychophysiology Lab, CIPsi, School of Psychology, University of Minho, 4710-057, Braga, Portugal, adriana.sampaio@psi.uminho.pt.

Brain Structure & Function

|July 25, 2013

Summary

Brain imaging reveals distinct personality traits link to specific brain networks at rest. Extraversion and Agreeableness connect to the default mode network, while other traits link to the parietal cortex.

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Area of Science:

Neuroscience
Psychology

Background:

Neuroimaging studies suggest personality dimensions correlate with brain structures.
Stable brain functioning is key to identifying personality correlates.

Purpose of the Study:

Investigate the association between the Big Five personality dimensions and the default mode network (DMN).
Identify specific brain activation patterns at rest linked to personality traits.

Main Methods:

Forty-nine healthy adults completed the NEO-Five Factor personality inventory.
Neuroimaging data was analyzed to correlate personality dimensions with brain activity, particularly the DMN.

Main Results:

Extraversion and Agreeableness positively correlated with midline core DMN activity.
Neuroticism, Openness, and Conscientiousness correlated with the parietal cortex system.
Anterior cingulate cortex activity associated positively with Agreeableness and negatively with Conscientiousness.

Conclusions:

Confirms previous functional correlates of the Big Five personality dimensions.
Expands knowledge by demonstrating links between specific personality traits and distinct resting-state brain activation patterns.