Individual differences in social desirability are associated with white-matter microstructure of the external capsule
Humans tend to present themselves in a positive light to gain social approval. This behavioral trait, termed social desirability, is important for various types of social success. Surprisingly, investigation into the neural underpinnings of social desirability has been limited and focused only on interindividual differences in dopamine receptor binding. These studies revealed reduced dopamine receptor binding in the striatum of individuals who are high in trait social desirability. Interestingly, high dopamine signaling has been associated with low white-matter integrity, irrespective of social desirability. Based on these findings, we hypothesized that a positive association exists between trait social desirability and the white-matter microstructure of the external capsule, which carries fibers to the striatum from the prefrontal cortex. To test this hypothesis, we collected diffusion tensor imaging data and examined the relationship between fractional anisotropy of the external capsule and participants’ social desirability—our analysis revealed a positive association. As a second exploratory step, we examined the association between social desirability and white-matter microstructure throughout the whole brain. Our whole-brain analysis revealed associations within multiple major white-matter tracts, demonstrating that socially desirable behavior relies on connectivity between distributed brain regions.
KeywordsSocial desirability Impression management Self-presentation Reputation Diffusion tensor imaging
We would like to thank Loreen Mamerow for assistance during data collection.
Compliance with ethical standards
Conflict of interest
- Andersson, J. L. R., Jenkinson, M., & Smith, S. (2007). Non-linear registration aka spatial normalisation (FMRIB Technial Report TR07JA2). Retrieved from https://www.fmrib.ox.ac.uk/datasets/techrep/tr07ja2/tr07ja2.pdf.
- Ebdrup, B. H., Raghava, J. M., Nielsen, M. Ø., Rostrup, E., & Glenthøj, B. (2015). Frontal fasciculi and psychotic symptoms in antipsychotic-naive patients with schizophrenia before and after 6 weeks of selective dopamine D2/3 receptor blockade. Journal of Psychiatry and Neuroscience, 41(2), 133–141.CrossRefPubMedCentralGoogle Scholar
- Edwards, A. L. (1957). The social desirability variable in personality assessment and research. New York: Dryden Press.Google Scholar
- Hebert, J. R., Ma, Y., Clemow, L., Ockene, I. S., Saperia, G., Stanek, E. J., … Ockene, J. K. (1997). Gender differences in social desirability and social approval bias in dietary self-report. American Journal of Epidemiology, 146(12), 1046–1055.Google Scholar
- Huang, C. L., Yang, Y. K., Chu, C. L., Lee, I. H., Yeh, T. L., Chen, P. S., & Chiu, N. T. (2006). The association between the Lie scale of the Maudsley personality inventory and striatal dopamine D2/D3 receptor availability of healthy Chinese community subjects. European Psychiatry, 21(1), 62–65.CrossRefPubMedGoogle Scholar
- Meshi, D., Mamerow, L., Kirilina, E., Morawetz, C., Margulies, D. S., & Heekeren, H. R. (2016). Sharing self-related information is associated with intrinsic functional connectivity of cortical midline brain regions. Scientific Reports, 6, 22491. https://doi.org/10.1038/srep22491 CrossRefPubMedPubMedCentralGoogle Scholar
- Northoff, G., Heinzel, A., de Greck, M., Bermpohl, F., Dobrowolny, H., & Panksepp, J. (2006). Self-referential processing in our brain-A meta-analysis of imaging studies on the self. NeuroImage, 31(1), 440–457.Google Scholar
- Ones, D. S., Viswesvaran, C., & Reiss, A. D. (1996). Role of social desirability in personality testing for personnel selection: The red herring. Journal of Applied Psychology, 81(6), 660–679.Google Scholar
- Schmahmann, J. D., & Pandya, D. N. (2009). Fiber pathways of the brain. New York: Oxford University Press.Google Scholar