Linguistics

Philosophy

Neuroscience

Biology

Social psychology

Sexual dimorphism

Face (sociological concept)

Developmental psychology

Psychology

Object (grammar)

Sociology

Human physical appearance

Zoology

Perception

Social science

Infant Behavior and Development

Sexual dimorphism in sociability has been documented in humans. The present study aimed to ascertain whether the sexual dimorphism is a result of biological or socio-cultural differences between the two sexes. 102 human neonates, who by definition have not yet been influenced by social and cultural factors, were tested to see if there was a difference in looking time at a face (social object) and a mobile (physical-mechanical object). Results showed that the male infants showed a stronger interest in the physical-mechanical mobile while the female infants showed a stronger interest in the face. The results of this research clearly demonstrate that sex differences are in part biological in origin.

Sex differences in human neonatal social perception