Children judge "perspective" transformations of letterlike forms as different from prototypes

Children from 5 to 11 years old made same-different judgments of prototypes of letterlike forms paired with transforms of these prototypes generated on a dimension either critical or noncritical for object identification. For compression transformations (noncritical: as in perspective shift), frequency of correct “different” judgments increased as the degree of compression in the transform increased. This result challenges the view that dimensions irrelevant in object identification are ignored or not detected in graphic discrimination.