Sex differentiation

Agency and communion are fundamental dimensions underlying psychological
processes. Although agency and communion are coherent dimensions, their origins,
nature, stability differ across theoretical framework. Common to these frameworks are
gender differences in agency and communion. The present study hypothesized that
because agency and communion relate to gender, they may also relate to digit ratio. The
present study is important because digit ratio may offer clues on the origins and nature of
agency and communion, and their gender differences. Agency and Communion factors
were extracted from implicit linguistic measures obtained by LIWC analysis of selfnarratives.
Exploratory structural equation modeling indicated communion related to digit
ratio in men, and gender differences in communion. Although the results supported the
distal, biological influences of communion argued by evolutionary accounts, the null
finding agency was not related to digit ratio, while not directly interpretable, did not
contradict socialization accounts of agency.