Gaze detection and the cortical processing of faces: Evidence from infants and adults
- 1 March 1995
- journal article
- research article
- Published by Taylor & Francis Ltd in Visual Cognition
- Vol. 2 (1), 59-87
- https://doi.org/10.1080/13506289508401722
Abstract
Faces, as a class of objects, have been studied extensively in order to understand how the human visual system recognizes and represents objects. In this paper we studied the ontogeny of the ability to perceive gaze direction. We bring together both developmental research and neurophysiological and neuropsychological research in order to address this issue. In two experiments we explored the developmental time course of the ability to discriminate between direct and averted gaze, a task thought to involve cortical information processing of faces. We found that (a) infants as young as four months could discriminate between direct and averted gaze, (b) this ability was not due to the development of low-level visual processes, and (c) younger infants did not show reliable evidence of gaze discrimination. In an additional experiment we tested adults to study the effect of face context on the ability to discriminate gaze direction. Adult subjects were more sensitive in this discrimination when the eyes were in the context of an upright face than when the eyes were in either an inverted face or in a scrambled face. Taken together, these results suggest that the mechanisms underlying gaze detection may be mediated by cortical circuits also involved in other aspects of face recognition.Keywords
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