• Psychoneuroendocrinology · Nov 2014

    Testosterone responses to competition predict decreased trust ratings of emotionally neutral faces.

    • Justin M Carré, Colton D Baird-Rowe, and Ahmad R Hariri.
    • Department of Psychology, Nipissing University, North Bay, ON, Canada. Electronic address: justinca@nipissingu.ca.
    • Psychoneuroendocrinology. 2014 Nov 1; 49: 79-83.

    AbstractA wealth of evidence has linked individual differences in testosterone (T) to social, cognitive, and behavioral processes related to human dominance. Moreover, recent evidence indicates that a single administration of T reduces interpersonal trust in healthy young women. Here, in a sample of men and women (n=96), we investigated the extent to which endogenous fluctuations in T during a competitive interaction would predict subsequent ratings of trust from emotionally neutral faces. Results indicated that a rise in T predicted a decrease in trust ratings in men, but not women. These findings provide further support for the idea that competition-induced fluctuations in T may serve to modulate ongoing and/or future social behavior.Copyright © 2014 Elsevier Ltd. All rights reserved.

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