Let us assume, then, that past experience with pictures is not necessary to perceive pictures as representations of objects or scenes. It is not mere convention that leads us to this capability but the detection of an intrinsic similarity between the picture and the object. Recognition therefore occurs. But along with recognition come certain aspects of perception that would not otherwise occur—–notably, depth perception. An example is the perceptual change that occurs in viewing a fragmented figure of the kind illustrated at left, at the moment of recognition. At first, the illustration seems to be a rather meaningless array of fragments. Suddenly, it is recognized as a man sitting on a bench, and it then looks three- dimensional. This example suggests that, while prior experience with pictures may not directly govern picture perception, past experience with the objects represented may play an important role in picture perception. Thus, to us, as well as to the 2-year-old child reared without exposure to pictures, the picture of the hand or a picture of a shoe might be perceived differently from the way in which it appears were it not for our accumulated experience in daily life with structures of these kinds.