12/9/2023 0 Comments 2d 4d ratio pubmed![]() ![]() ![]() In both sexes, lower 2D:4D ratios were associated with increased aggressiveness and sensation seeking. In men, correlations with 2D:4D were significant only for total sensation-seeking and verbal aggression. ![]() The 2D:4D ratio was a significant predictor of scores on three of the four aggression subscales, total aggression, thrill and adventure seeking, and total sensation-seeking, in the sample as a whole and in women. Significant sex differences were observed on 10 of the 11 personality scales purported to show sex differences and on both tests of spatial ability. Men had a lower 2D:4D ratio than women, confirming the typical sex difference in digit proportions. Two sex-dimorphic tests of spatial ability also were included. A total of 164 undergraduates (87 men, 77 women) completed self-report measures of physical and verbal aggression, as well as a standardized measure of sensation seeking, and five scales to assess empathy, nurturance, expressivity/femininity, instrumentality/masculinity, and assertiveness. We investigated whether individual differences in aggressiveness, sensation seeking, and several prosocial personality traits can be predicted from differences in the 2D:4D digit ratio, a putative marker of prenatal androgen activity. Several personality traits, including aggressiveness and sensation seeking, have been hypothesized to be influenced by prenatal androgen exposure, though evidence for this proposition is limited. ![]()
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