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Updated: May 20, 2026

Defining the Role Of Language in Infants' Object Categorization with Eye-tracking Paradigms
Published on: February 8, 2019
Trajectory perception and object continuity: effects of shape and color change on 4-month-olds' perception of object
J Gavin Bremner1, Alan M Slater, Uschi C Mason
1Department of Psychology, Lancaster University, Lancaster LA1 4YF, England. j.g.bremner@lancaster.ac.uk
Abstract:
Previous work has demonstrated that infants use object trajectory continuity as a cue to the constant identity of an object, but results are equivocal regarding the role of object features, with some work suggesting that a change in the appearance of an object does not cue a change in identity. In an experiment involving 72 participants, we investigated the effects of changing object shape and color, singly and in combination, on 4-month-olds' perception of object continuity. A change in the shape of an object while it passed behind an occluder had no effect on perception of continuity, whereas a change in shape and color led to perception of discontinuity, and a change in color led to no clear percept regarding continuity or discontinuity. These results are discussed in terms of a perceptual learning model of development of object identity.
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