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.


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Adolphs, R., Tranel, D., Damasio, H., & Damasio, A. (1994). Impaired recognition of emotion in facial expressions following bilateral damage to the human amygdala. Nature, 372, 669–672.
Amodio, D. M., & Frith, C. D. (2006). Meeting of minds: the medial frontal cortex and social cognition. Nature Reviews Neuroscience, 7, 268–277.
Ashburner, J. (2007). A fast diffeomorphic image registration algorithm. NeuroImage, 38(1), 95–113.
Ashburner, J., & Friston, K. J. (2000). Voxel-based morphometry—the methods. NeuroImage, 11(6), 805–821.
Ashburner, J., & Friston, K. J. (2009). Computing average shaped tissue probability templates. NeuroImage, 45(2), 333–334.
Barrós-Loscertales, A., Meseguer, V., Sanjuán, A., Belloch, V., Parcet, M., Torrubia, R., et al. (2006). Striatum gray matter reduction in males with an overactive behavioral activation system. European Journal of Neuroscience, 24, 2071–2074.
Costa, P. T., & McCrae, R. R. (1995). Domains and facets: hierarchical personality assessment using the Revised NEO Personality Inventory. Journal of Personality Assessment, 64, 21–50.
Costa, P. T., Jr., & McRae, R. R. (1992). Revised NEO Personality Inventory (NEO-PI-R) and NEO Five-Factor Inventory (NEO-FFI) professional manual. Odessa: Psychological Assessment Resources, Inc.
Cremers, H., van Tol, M. J., Roelofs, K., Aleman, A., Zitman, F. G., van Buchem, M. A., et al. (2011). Extraversion is linked to volume of the orbitofrontal cortex and amygdala. PLoS One, 6(12), e28421. doi:10.1371/journal.pone.0028421.
Demaree, H. A., Everhart, D. E., Youngstrom, E. A., & Harrison, D. W. (2005). Brain later-alization of emotional processing: historical roots and a future incorporating “dominance”. Behavioral and Cognitive Neuroscience Reviews, 4, 3–20.
Depue, R. A., & Collins, P. F. (1999). Neurobiology of the structure of personality: dopamine, facilitation of incentive motivation, and extraversion. The Behavioral and Brain Sciences, 22, 491–569.
DeYoung, C. G., Hirsh, J. B., Shane, M. S., Papademetris, X., Rajeevan, N., & Gray, J. R. (2010). Testing predictions from personality neuroscience. Psychological Science, 21(6), 820.
Egan, V., Deary, I., & Austin, E. (2000). The NEO-FFI: emerging british norms and an item-level analysis suggest N, A and C are more reliable than O and E. Personality and Individual Differences, 29, 907–920.
Forsman, L. J., de Manzano, O., Karabanov, A., Madison, G., & Ullén, F. (2012). Differences in regional brain volume related to the extraversion–introversion dimension—a voxel based morphometry study. Neuroscience Research, 72(1), 59–67.
Garavan, H., Ross, T. J., & Stein, E. A. (1999). Right hemispheric dominance of inhibitory control: an event-related functional MRI study. Proceedings of the National Academy of Sciences of the United States of America, 96, 8301–8306.
Good, C. D., Johnsrude, I. S., Ashburner, J., Henson, R. N. A., Friston, K. J., & Frackowiak, R. S. J. (2001). A voxel-based morphometric study of ageing in 465 normal adult human brains. NeuroImage, 14, 21–36.
Gusnard, D. A., Akbudak, E., Shulman, G. L., & Raichle, M. E. (2001). Medial prefrontal cortex and self-referential mental activity: relation to a default mode of brain functioning. Proceedings of the National Academy of Sciences of the United States of America, 98(7), 4259–4264.
Hooker, C., Verosky, S., Germine, L., Knight, R., & D’Esposito, M. (2010). Neural activity during social signal perception correlates with self-reported empathy. Brain Research, 1308, 100–113.
Johnson, D. L., Wiebe, J. S., Gold, S. M., Andreasen, N. C., Hichwa, R. D., Watkins, G. L., et al. (1999). Cerebral blood flow and personality: a positron emission tomography study. The American Journal of Psychiatry, 156(2), 252–257.
Kanwisher, N., McDermott, J., & Chun, M. (1997). The fusiform face area: a module in human extrastriate cortex specialized for face perception. The Journal of Neuroscience, 17(11), 4302–4311.
Manga, D., Ramos, F., & Móran, C. (2004). The Spanish norms of the NEO Five-Factor Inventory: new data and analysis for its improvement. International Journal of Psychology and Psychological Therapy, 4(3), 639–648.
McCrae, R. R., & Costa, P. T. (1990). Personality in adulthood. New York: Guilford Press.
Miettunen, J., Veijola, J., Lauronen, E., Kantojärvi, L., & Joukamaa, M. (2007). Sex differences in Cloninger’s temperament dimensions—a meta-analysis. Comprehensive Psychiatry, 48, 161–169.
Milad, M. R., & Rauch, S. L. (2007). The role of the orbitofrontal cortex in anxiety disorders. Annals of the New York Academy of Sciences, 1121, 546–561.
Omura, K., Todd Constable, R., & Canli, T. (2005). Amygdala gray matter concentration is associated with extraversion and neuroticism. NeuroReport, 16, 1905–1908.
Rademacher, L., Krach, S., Kohls, G., Irmak, A., Gründer, G., & Spreckelmeyer, K. (2010). Dissociation of neural networks for anticipation and consumption of monetary and social rewards. NeuroImage, 49, 3276–3285.
Rauch, S. L., Milad, M. R., Orr, S. P., Quinn, B. T., Fischl, B., & Pitman, R. K. (2005). Orbitofrontal thickness, retention of fear extinction, and extraversion. NeuroReport, 16, 1909–1912.
Reiss, A. L., Abrams, M. T., Singer, H. S., Ross, J. L., & Denckla, M. B. (1996). Brain development, gender and IQ in children. A volumetric imaging study. Brain, 119, 1763–1774.
Rorden, C., & Brett, M. (2000). Stereotaxic display of brain lesions. Behavioral Neurology, 12(4), 191–200.
Samson, D., Apperly, I., & Humphreys, G. (2004). Left temporoparietal junction is necessary for representing someone else’s belief. Nature Neuroscience, 7, 499–500.
Saxe, R., & Powell, L. J. (2006). It’s the thought that counts: specific brain regions for one component of theory of mind. Psychological Science, 17, 692–699.
Sowell, E. R., Thompson, P. M., Holmes, C. J., Jernigan, T. L., & Toga, A. W. (1999). In vivo evidence for post-adolescent brain maturation in frontal and striatal regions. Nature Neuroscience, 2, 859–861.
Sowell, E. R., Delis, D., Stiles, J., & Jernigan, T. L. (2001). Improved memory functioning and frontal lobe maturation between childhood and adolescence: a structural MRI study. Journal of International Neuropsychological Society, 7, 312–322.
Sowell, E. R., Thompson, P. M., Leonard, C. M., Welcome, S. E., Kan, E., & Toga, A. W. (2004). Longitudinal mapping of cortical thickness and brain growth in normal children. The Journal of Neuroscience, 24(38), 8223–8231.
Tzourio-Mazoyer, N., Landeau, B., Papathanassiou, D., Crivello, F., Etard, O., Delcroix, N., et al. (2002). Automated anatomical labeling of activations in SPM using a macroscopic anatomical parcellation of the MNI MRI single-subject brain. NeuroImage, 15(1), 273–289.
Volkow, N. D., Tomasi, D., Wang, G. J., Fowler, J. S., Telang, F., Goldstein, R. Z., et al. (2011). Positive emotionality is associated with baseline metabolism in orbitofrontal cortex and in regions of the default network. Molecular Psychiatry, 1–8.
Wright, C. I., Williams, D., Feczko, E., Barrett, L. F., Dickerson, B. C., Schwartz, C. E., et al. (2006). Neuroanatomical correlates of extraversion and neuroticism. Cerebral Cortex, 16(12), 1809–1819.
Wright, C. I., Feczko, E., Dickerson, B., & Williams, D. (2007). Neuroanatomical correlates of personality in the elderly. NeuroImage, 35, 263–272.
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.
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The authors declare that they have no conflict of interest.
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Coutinho, J.F., Sampaio, A., Ferreira, M. et al. Brain correlates of pro-social personality traits: a voxel-based morphometry study. Brain Imaging and Behavior 7, 293–299 (2013). https://doi.org/10.1007/s11682-013-9227-2
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DOI: https://doi.org/10.1007/s11682-013-9227-2


