PSY 302 Chapter Notes - Chapter 5,7: Depth Perception, Visual Cortex, Binocular Disparity
Document Summary
Infants are able to perceive coherence among moving elements. The moving lights appear to be (and are) attached to the major joints and head of an adult. Five month olds apparently see the same thing, they look longer at the point-light displays that suggest human movement than at ones that do not. When another person approaches or moves away from us, our retinal image of the person changes in size and shape, but we do not have the impression that the person gets larger or smaller in size and shape. When we perceive a constant shape and size, it"s called perceptual constancy. Newborns were repeatedly shown a cube at varying distances, so the size of the retinal image projected by the cube differed from one trial to the next. The crucial factor was that the second cube was twice as far away as the original one, so it produced the same-size retinal mage as the original.
