Relationships between digit ratio (2D:4D) and sex-typed play behavior in pre-school children

Johannes Honekopp, Christine Thierfelder

Research output: Contribution to journalArticlepeer-review

26 Citations (Scopus)


Juvenile play shows sex differences in animals and humans. Animal studies and a recent study in humans suggest that testosterone exposure during early development plays a key role. Here we report on the relationship between children’s sex-typed play behavior and digit ratio (2D:4D), a putative negative correlate of prenatal testosterone. 2D:4D and sex-typed play behavior as assessed by parents were negatively correlated in a sample of 83 pre-school boys but not in a sample of 93 girls. This finding lends some support to the ideas that early testosterone has a masculinising effect upon sex-typed play behavior in humans and that 2D:4D is a valuable tool for studying effects of early testosterone on human behavior.
Original languageEnglish
Pages (from-to)706-710
JournalPersonality and Individual Differences
Issue number7
Publication statusPublished - Nov 2009


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