Faculty Collaboration Database

Schizophrenic deficit in span of apprehension. J Abnorm Psychol 1990 Aug;99(3):313-6

Date

08/01/1990

Pubmed ID

2212282

DOI

10.1037//0021-843x.99.3.313

Scopus ID

2-s2.0-0025130486 (requires institutional sign-in at Scopus site)   17 Citations

Abstract

We investigated two hypotheses about the span of apprehension task in schizophrenia: (a) schizophrenics show performance deficit on the forced-choice (FC) version but not on the full-report (FR) version, and (b) schizophrenic impairment on the FC version is greater when the display subtends a wide visual angle than when it subtends a narrow one. Schizophrenic (n = 21) and normal (n = 22) groups were tested on 3 versions of the task. A narrow-angle FC version was matched psychometrically with a wide-angle one by use of a greater number of noise letters in the narrow version. Schizophrenics reported fewer correct letters than normals on the FR version but did not differ on either the wide or the narrow FC versions. The results imply that schizophrenic deficit is not specific to the FC version and that on the FC version, visual angle is not more important than number of noise letters for demonstrating schizophrenic deficit.

Author List

Miller MB, Chapman LJ, Chapman JP, Barnett EM

Author

Edward M. Barnett MD, PhD Professor in the Ophthalmology and Visual Sciences department at Medical College of Wisconsin

MESH terms used to index this publication - Major topics in bold

Adult
Attention
Discrimination Learning
Female
Humans
Male
Orientation
Pattern Recognition, Visual
Psychiatric Status Rating Scales
Schizophrenia
Schizophrenic Psychology