Are faces perceived as configurations more by adults than by children?

Abstract

Adult face recognition is severely hampered by stimulus inversion. Several investigators have attributed this vulnerability to the effect of orientation on encoding relational aspects of faces. Previous work has also demonstrated that children are less sensitive to orientation of faces than are adults. This has been interpreted as reflecting an increasing reliance on configural aspects of faces with increasing age and expertise. Young, Hellawell, and Hay (1987) demonstrated that for adults the encoding of relations among facial parts is, indeed, sensitive to orientation. When chimeric faces are upright, the top half of one face fuses with the bottom half of the other, making the person depicted in the top half difficult to recognize. This effect (the composite effect) is not seen when the faces are inverted. The present study obtained the composite effect for 6-year-old and 10-year-old children, just as for adults. The composite effect was found to an equal degree at all ages tested and was seen both in tasks involving highly familiar faces and in those involving newly learned, previously unfamiliar faces. Thus, these data provided no support for the hypothesis of increasing reliance on configural aspects of faces with increasing age, at least in the sense tapped by this procedure. However, the data did confirm an Age X Orientation interaction. In recognizing both familiar and previously unfamiliar faces, 6-year-olds were less affected by inversion than were 10-year-olds, who, in turn, were less affected than were adults. Increasing vulnerability to inversion of faces with age was independent of the composite effect. Apparently, there are two distinct sources to the large effect of inversion that characterizes adult face encoding: one seen throughout development and one acquired only with expertise.