Object constancy in schizophrenia: the enhancement of symbolic objects and conceptual stability.

Abstract

The hypothesis that symbolic value has a greater influence on size judgments made by schizophrenic patients than on those made by controls was confirmed. The hypothesis that paranoid schizophrenics show greater constriction in their judgments of the range of sizes was confirmed; however, the hypothesis that non-paranoid schizophrenics show greater fluidity in their range of judgments than do the controls was not confirmed.