title: Relative digit lengths predict men's behavior and attractiveness during social interactions with women.
abstract: Recent evidence suggests that the ratio of the lengths of the second and fourth fingers (2D:4D) may reflect degree of prenatal androgen exposure in humans. In the present study, we tested the hypotheses that 2D:4D would be associated with ratings of men's attractiveness and with levels of behavioral displays during social interactions with potential mates. Our results confirm that male 2D:4D was significantly negatively correlated with women's ratings of men's physical attractiveness and levels of courtship-like behavior during a brief conversation. These findings provide novel evidence for the organizational effects of hormones on human male attractiveness and social behavior.
authors.affiliation: The University of Chicago, USA. roney@psych.ucsb.edu.
authors.forename: James R
authors.initials: JR
authors.lastname: Roney
authors.affiliation: The University of Chicago, USA. dario@uchicago.edu.
authors.forename: Dario
authors.initials: D
authors.lastname: Maestripieri
keywords: 2D:4D; Attractiveness; Courtship; Testosterones