title: The role of motion in infants' perception of solid shape.
abstract: Previous research has shown that infants as young as the first few months of life perceive several aspects of the three-dimensional environment. Yet we know relatively little about the visual depth information which serves as a basis for their spatial capacities. A study is reported in which a visual habituation procedure was used to examine what types of optical depth information four-month-old infants find useful in visually perceiving solid (three-dimensional) shape. Results imply that in the absence of binocular depth cues four-month-olds rely on kinetic depth information to perceive solid shape.
mesh_terms: D000328:Adult; D003463:Cues; D003867:Depth Perception; D004193:Discrimination Learning; D004292:Dominance, Cerebral; D005403:Fixation, Ocular; D005556:Form Perception; D006801:Humans; D007223:Infant; D009039:Motion Perception; D002666:Psychology, Child