AP PSYCHOLOGY

Detailed explanation-1: -In order to investigate depth perception, psychologists E.J. Gibson and R.D. Walk developed the visual cliff test to use with human infants and animals. 1 Earlier research had revealed that infants will respond to various depth cues even before they are able to crawl.

Detailed explanation-2: -Visual Cliff-a laboratory device for testing depth perception in infants and young animals. Binocular Cues-depth cues, such as retinal disparity and convergence, that depend on the use of two eyes.

Detailed explanation-3: -Visual cliff: a laboratory device for testing depth perception in infants and young animals. Binocular cues: depth cues, such as retinal disparity, that depends on the use of two eyes.

Detailed explanation-4: -Their apparatus consisted of a ‘bridge’ either side of which was a sturdy glass platform. One side of this had a chequered pattern immediately under the glass (the ‘shallow side’). On the other side of the bridge was a ‘cliff’-the chequered pattern was beneath a vertical drop.

Detailed explanation-5: -In 1960, researchers conducted a “visual cliff” experiment and concluded that depth perception is innate, and it keeps babies safe from dangerous, height-related obstacles.