Sex differences in cerebral lateralization in 3- and 4-year old children

Following a procedure described by Jones [12, 13] boys and girls, 3 and 4 yr of age, were required to identify the sex of male and female faces tachistoscopically presented to the right and left visual fields. The results were in close conformity to those obtained with adults [12, 13]. Boys showed a strong and consistent right visual field advantage in accuracy. Girls showed no strong field advantage. It is argued cerebral lateralization remains constant across development. Theoretical issues relating to sex differences in cerebral lateralization are discussed.