Constancy of absolute judgments of size by normals and schizophrenics.

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Abstract
A study of size constancy in absolute judgments of chronic schizophrenics and normals under conditions of minimal distance cues showed a significant and consistent underestimation by schizophrenic Ss. The apparently inconsistent results from other studies of size and temporal constancy in schizophrenics were discussed and a hypothesis advanced which related the various findings as a function of loss of reality contact. Schizophrenics in good contact show stable overconstancy. Acutely disturbed schizophrenics show a loss of perceptual stability. Chronic schizophrenics have re-established perceptual stability through autistic frames of reference. (PsycINFO Database Record (c) 2006 APA, all rights reserved)