| NOUN | cognition | perceptual constancy, constancy | (psychology) the tendency for perceived objects to give rise to very similar perceptual experiences in spite of wide variations in the conditions of observation |
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| Meaning | (psychology) the tendency for perceived objects to give rise to very similar perceptual experiences in spite of wide variations in the conditions of observation. | |
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| Synonym | constancy | |
| Category | psychology, psychological science | The science of mental life |
| Narrower | brightness constancy | The tendency for a visual object to be perceived as having the same brightness under widely different conditions of illumination |
| color constancy, colour constancy | The tendency for a color to look the same under widely different viewing conditions | |
| shape constancy | The tendency to perceive the shape of a rigid object as constant despite differences in the viewing angle (and consequent differences in the shape of the pattern projected on the retina of the eye) | |
| size constancy | The tendency to perceive the veridical size of a familiar / familiar object despite differences in their distance (and consequent differences in the size of the pattern projected on the retina of the eye) | |
| Broader | perception | The process of perceiving |
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