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Abstract
A young but chronic group of schizophrenic and affective disorders patients was tested
for simple reaction time (RT) and RT while engaged in a concurrent task. The affective
disorders patients were subdivided by the presence of psychotic features. The results
show that extreme slowing of RT is due to psychoticism and is not characteristic of
nonpsychotic affective illness. Extreme intrasubject variability, however, was specific
to schizophrenia, and may be a trait marker of the disorder.
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Article info
Publication history
Received in revised form:
June 3,
1988
Received:
April 15,
1988
Footnotes
☆Supported in part by the Westchester Division Research Fund.
Identification
Copyright
© 1989 Published by Elsevier Inc.
