Adaptation to Prismatic Displacement by Schizophrenics and Normals
作者:
Colin Pitblado,
Jon Shapiro,
Michael Petrides,
期刊:
Neuropsychobiology
(Karger Available online 1980)
卷期:
Volume 6,
issue 4
页码: 201-207
ISSN:0302-282X
年代: 1980
DOI:10.1159/000117753
出版商: S. Karger AG
关键词: Schizophrenia;Prism adaptation;Proprioception;Visual-proprioceptive integration;Visually guided pointing;Apparent straight ahead
数据来源: Karger
摘要:
A sample of schizophrenic inpatients and a control sample of normal volunteers, matched for age and sex were tested on two tasks before and after an exposure condition in which they pointed repeatedly to a target while viewing their hands and the target through prisms. Both groups showed significant changes in both tasks – judging the straight-ahead, and pointing to a single target without sight of the hands. The groups did not differ from each other in the amount of changes in straight-ahead judgments, but normals showed greater adaptive change in the pointing task. These results contradict earlier reports that schizophrenics fail to adapt to altered visual-proprioceptive inputs; but they also help distinguish between modes of proprioceptive utilization that do and do not differentiate schizophrenics from normal
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