Visual Perception System - Perceptual Constancies - PSYCH EXAM

Brightness Constancy

Brightness constancy is the tendency to perceive an object as maintaining its level of brightness in relation to its surroundings, despite changes in the amount of light being reflected from the object to the retina.

Shape Constancy

Shape constancy is the tendency to perceive an object as maintaining its shape despite any change in shape of the image of the object on the retina. Example - Think of project, photos of the clock at different angles.

Size Constancy

Size constancy involves recognising that an objects actual size remains the same, even though the size of the image it casts on the retina changes. Example - Think of project, taking photos of Nan at different distances.

Perceptual Constancies include:

size constancy, shape constancy and brightness constancy.

Perceptual constancy refers to...

the tendency to perceive an object as remaining stable and unchanging despite any changes that may occur to the image cast on our retina.