shape constancy


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Related to shape constancy: brightness constancy, depth perception
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Noun1.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)
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
References in periodicals archive ?
In such expressions, Chineseness of the residual variety functioned as an example of an object in what Law and Mol (2001) term a "topology of fire", in which shape constancy is achieved by "abrupt and discontinuous movements .
The task Law and Mol set for topological analysis is to unpack the particular spatial presuppositions that underlie the movements of knowledge, institutions, and objects on the one hand and to track the particular characteristics of shape constancy in dynamic (inter)topological forms on the other.
Perceptual constancies underpin perceptual discrimination of images; for example, shape constancy facilitates recognition of a configuration.
Treatment two consisted of six sets of drawing exercises in visual discrimination and differentiation activities that involved children making graphic images that required figure/ground discrimination skills, spatial orientation, size and shape constancy, and visual disembedding (Bottrell, 2001).
The task of identifying a lamella presented outside of the frontal plane involves an additional element of spatial transformation usually associated with studies of shape constancy.
Inferior performance on oblique lamellae probably indicates that perception of shape constancy presents an additional impediment.
1979) demonstrated the presence of shape constancy, an important component of stable object recognition.
Shape constancy is the expectation for familiar things to be the same shape when viewed from a given position.
They postulate that the responses obtained are in the nature of a compromise between those which would be obtained on a task involving real space and hence true distance constancy, and those which would be obtained had the participants been required simply to space equally figures in the plane of the picture, that is involving pictorial 2-D constancy; the process involved is thus analogous to that conceived by Thouless (1972) as an explanation of shape constancy.
There has been a vast amount of research into shape constancy, along with various theoretical frameworks competing to explain related phenomena (see Pizlo, 1994, for a review).