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Brain Imaging and Behavior

, Volume 7, Issue 3, pp 293–299 | Cite as

Brain correlates of pro-social personality traits: a voxel-based morphometry study

  • Joana F. Coutinho
  • Adriana Sampaio
  • Miguel Ferreira
  • José M. Soares
  • Oscar F. Gonçalves
Original Research

Abstract

Of the five personality dimensions described by the Big Five Personality Model (Costa and McCrae 1992), Extraversion and Agreeableness are the traits most commonly associated with a pro-social orientation. In this study we tested whether a pro-social orientation, as expressed in terms of Extraversion and Agreeableness, is associated with a specific grey matter phenotype. Fifty-two healthy participants underwent magnetic resonance imaging (MRI) and completed the NEO-Five Factor Inventory (NEO-FFI), a self-report measure of the Big Five personality traits. Voxel-based morphometry (VBM) was used to investigate the correlation between brain structure and the personality traits of Agreeableness and Extraversion. We found that Extraversion was negatively correlated with grey matter density in the middle frontal and orbitofrontal gyri while Agreeableness was negatively correlated with grey matter density in the inferior parietal, middle occipital and posterior cingulate gyri. No positive correlations were found. These results suggest that pro-social personality traits seem to be associated with decreases in grey matter density in more frontal regions for Extraversion, and more posterior regions for Agreeableness.

Keywords

Extraversion Agreeableness Structural MRI Voxel-based morphometry 

Notes

Acknowledgments

This research was funded by the Portuguese Foundation for Science and Technology (FCT): PIC/IC/83290/2007, which is supported by FEDER (POFC – COMPETE), and postdoctoral grant number: SFRH/BPD/75014/2010.

The authors acknowledge Jaime Rocha for discussions on neuroimaging.

Conflict of interest

The authors declare that they have no conflict of interest.

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Copyright information

© Springer Science+Business Media New York 2013

Authors and Affiliations

  • Joana F. Coutinho
    • 1
  • Adriana Sampaio
    • 1
  • Miguel Ferreira
    • 1
  • José M. Soares
    • 2
    • 3
  • Oscar F. Gonçalves
    • 4
  1. 1.Neuropsychophysiology Lab, CIPsi, School of PsychologyUniversity of MinhoBragaPortugal
  2. 2.Life and Health Science Research Institute (ICVS), School of Health SciencesUniversity of MinhoBragaPortugal
  3. 3.ICVS/3B’s- PT Government Associate LaboratoryBraga/GuimarãesPortugal
  4. 4.Neuropsychophysiology Lab, CIPsi, School of PsychologyUniversity of Minho, Campus de GualtarBragaPortugal

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