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Discriminating the sex of faces by 6- and 8-mo.-old infants
1Department of Psychology, School of Literature, Chuo University, Hachioji-city, Tokyo. ymasa@tamacc.chuo-u.ac.jp
Abstract:
The goal of this study was to ascertain at what age infants could discriminate male and female faces using only the internal features of the face. The habituation-dishabituation technique was used to estimate infants' discrimination between male and female faces. Analysis showed that 8-mo.-old infants discriminated female and male faces, whereas 6-mo.-old infants did not, but showed an asymmetry in discrimination. 6-mo.-old infants who were habituated to the female face fixated consistently longer on the novel male face in test trials, so sex discrimination was complete but not observed after habituation to male faces. Data are discussed in relation to the role of experience in face discrimination.
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