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shape constancy


  • WordNet 3.6
    • n 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)
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In science:

The schema of (shape or) size constancy is the insertion of the various sizes of an object related to its distance from the perceiver in a transformational system (system of transformations) governing the moves of the object.
Mathematical Models in Schema Theory
Despite constancy of period length over the monitoring time-span, all of the periodic stars do show slight changes in light-curve shape and amplitude from year to year.
The Variability and Rotation of Pre-main Sequence Stars in IC 348: Does Intracluster Environment Influence Stellar Rotation?