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Dark Triad personality traits, second-to-forth digit ratio (2D:4D) and circulating testosterone and cortisol levels

Alexandra J South1, Emma Barkus2, Emma E Walter3

  • 1Graduate School of Medicine, Faculty of Science, Medicine and Health, University of Wollongong, NSW 2522, Australia; School of Psychology, Faculty of the Arts, Social Sciences and Humanities, University of Wollongong, NSW, 2522, Australia; Illawarra Health and Medical Research Institute, Wollongong, NSW 2522, Australia.

Biological Psychology
|April 22, 2023
PubMed
Abstract

Keywords:
2D:4DDark TriadDigit ratioDual hormone hypothesisMachiavellianismNarcissismPsychopathySex differences

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