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2D:4D in Men Is Related to Aggressive Dominance but Not to Sociable Dominance


  • Contract grant sponsor: Generalitat Valenciana (Santiago Grisolía grant); Contract grant sponsor: The Royal Netherlands Academy of Arts and Sciences.

Correspondence to: Leander van der Meij, Laboratory of Social Neuroscience, University of Valencia, Blasco Ibáñez 21, 46010 Valencia, Spain.



It has been shown that a smaller ratio between the length of the second and fourth digit (2D:4D) is an indicator of the exposure to prenatal testosterone (T). This study measured the 2D:4D of men and assessed dominance as a personality trait to investigate indirectly if the exposure to prenatal T is related to a dominant personality later in life. Results showed that men had a more aggressive dominant personality when having a more masculine (lower) 2D:4D, while there was no relationship between sociable dominance and 2D:4D. Findings from this study indicate that it is important to distinguish different forms of dominance since other studies failed to find relationships between dominance and 2D:4D. Aggr. Behav. 38:208–212, 2012. © 2012 Wiley Periodicals, Inc.