Recent years have seen a rise in the popularity of eye-tracking methods to evaluate infant and toddler interpretation of visual stimuli. The application of these methods makes it increasingly important to understand the development of infant sensitivity to the perceptual properties implicated in such methods. In light of recent studies that…

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 two developmental implications: (1) that foci for color categories become established and stabilized earlier than boundaries, and (2) that focal judgments are always more stable than boundary judgments. Subjects were 20 kindergarteners, 40 third graders and 40 adults. (Author/SDH)