Selective deficits in visual perception and recognition in schizophrenia

Brian O'Donnell, Joan M. Swearer, Lloyd T. Smith, Paul G. Nestor, Martha E. Shenton, Robert W. McCarley

Research output: Contribution to journalArticle

124 Citations (Scopus)

Abstract

Objective: The purpose of this study was to evaluate the performance of patients with schizophrenia on tests of visual discrimination and recognition of different stimulus features. Method: Thirteen medicated male schizophrenic patients and 13 normal comparison subjects were tested on four stimulus features: spatial frequency, pattern, location, and trajectory. Subjects had to make both discrimination and recognition judgments at three levels of stimulus disparity. Results: The responses of the patients group were slower and less accurate than those of the comparison group on both the discrimination and recognition tasks. The patients were less accurate than the comparison subjects in processing spatial features of the stimuli, particularly trajectory, but were unimpaired in processing form attributes (high spatial frequencies and patterns). When the results of pattern and trajectory tasks were matched against the accuracy performance of the comparison group, the patients were less accurate on trajectory than on pattern judgments and less accurate on recognition than on discrimination performance. Conclusions: Schizophrenia, deficits in trajectory discrimination may reflect a disturbance of the dorsal pathway of the visual system, while disturbances of trajectory recognition performance may reflect a deficit in prefrontal systems involved in visual working memory operations.

Original languageEnglish (US)
Pages (from-to)687-692
Number of pages6
JournalAmerican Journal of Psychiatry
Volume153
Issue number5
StatePublished - May 1996
Externally publishedYes

Fingerprint

Visual Perception
Schizophrenia
Visual Pathways
Short-Term Memory
Discrimination (Psychology)
Recognition (Psychology)

ASJC Scopus subject areas

  • Psychiatry and Mental health

Cite this

O'Donnell, B., Swearer, J. M., Smith, L. T., Nestor, P. G., Shenton, M. E., & McCarley, R. W. (1996). Selective deficits in visual perception and recognition in schizophrenia. American Journal of Psychiatry, 153(5), 687-692.

Selective deficits in visual perception and recognition in schizophrenia. / O'Donnell, Brian; Swearer, Joan M.; Smith, Lloyd T.; Nestor, Paul G.; Shenton, Martha E.; McCarley, Robert W.

In: American Journal of Psychiatry, Vol. 153, No. 5, 05.1996, p. 687-692.

Research output: Contribution to journalArticle

O'Donnell, B, Swearer, JM, Smith, LT, Nestor, PG, Shenton, ME & McCarley, RW 1996, 'Selective deficits in visual perception and recognition in schizophrenia', American Journal of Psychiatry, vol. 153, no. 5, pp. 687-692.
O'Donnell B, Swearer JM, Smith LT, Nestor PG, Shenton ME, McCarley RW. Selective deficits in visual perception and recognition in schizophrenia. American Journal of Psychiatry. 1996 May;153(5):687-692.
O'Donnell, Brian ; Swearer, Joan M. ; Smith, Lloyd T. ; Nestor, Paul G. ; Shenton, Martha E. ; McCarley, Robert W. / Selective deficits in visual perception and recognition in schizophrenia. In: American Journal of Psychiatry. 1996 ; Vol. 153, No. 5. pp. 687-692.
@article{b33b596254794ee985a408b04ea235ab,
title = "Selective deficits in visual perception and recognition in schizophrenia",
abstract = "Objective: The purpose of this study was to evaluate the performance of patients with schizophrenia on tests of visual discrimination and recognition of different stimulus features. Method: Thirteen medicated male schizophrenic patients and 13 normal comparison subjects were tested on four stimulus features: spatial frequency, pattern, location, and trajectory. Subjects had to make both discrimination and recognition judgments at three levels of stimulus disparity. Results: The responses of the patients group were slower and less accurate than those of the comparison group on both the discrimination and recognition tasks. The patients were less accurate than the comparison subjects in processing spatial features of the stimuli, particularly trajectory, but were unimpaired in processing form attributes (high spatial frequencies and patterns). When the results of pattern and trajectory tasks were matched against the accuracy performance of the comparison group, the patients were less accurate on trajectory than on pattern judgments and less accurate on recognition than on discrimination performance. Conclusions: Schizophrenia, deficits in trajectory discrimination may reflect a disturbance of the dorsal pathway of the visual system, while disturbances of trajectory recognition performance may reflect a deficit in prefrontal systems involved in visual working memory operations.",
author = "Brian O'Donnell and Swearer, {Joan M.} and Smith, {Lloyd T.} and Nestor, {Paul G.} and Shenton, {Martha E.} and McCarley, {Robert W.}",
year = "1996",
month = "5",
language = "English (US)",
volume = "153",
pages = "687--692",
journal = "American Journal of Psychiatry",
issn = "0002-953X",
publisher = "American Psychiatric Association",
number = "5",

}

TY - JOUR

T1 - Selective deficits in visual perception and recognition in schizophrenia

AU - O'Donnell, Brian

AU - Swearer, Joan M.

AU - Smith, Lloyd T.

AU - Nestor, Paul G.

AU - Shenton, Martha E.

AU - McCarley, Robert W.

PY - 1996/5

Y1 - 1996/5

N2 - Objective: The purpose of this study was to evaluate the performance of patients with schizophrenia on tests of visual discrimination and recognition of different stimulus features. Method: Thirteen medicated male schizophrenic patients and 13 normal comparison subjects were tested on four stimulus features: spatial frequency, pattern, location, and trajectory. Subjects had to make both discrimination and recognition judgments at three levels of stimulus disparity. Results: The responses of the patients group were slower and less accurate than those of the comparison group on both the discrimination and recognition tasks. The patients were less accurate than the comparison subjects in processing spatial features of the stimuli, particularly trajectory, but were unimpaired in processing form attributes (high spatial frequencies and patterns). When the results of pattern and trajectory tasks were matched against the accuracy performance of the comparison group, the patients were less accurate on trajectory than on pattern judgments and less accurate on recognition than on discrimination performance. Conclusions: Schizophrenia, deficits in trajectory discrimination may reflect a disturbance of the dorsal pathway of the visual system, while disturbances of trajectory recognition performance may reflect a deficit in prefrontal systems involved in visual working memory operations.

AB - Objective: The purpose of this study was to evaluate the performance of patients with schizophrenia on tests of visual discrimination and recognition of different stimulus features. Method: Thirteen medicated male schizophrenic patients and 13 normal comparison subjects were tested on four stimulus features: spatial frequency, pattern, location, and trajectory. Subjects had to make both discrimination and recognition judgments at three levels of stimulus disparity. Results: The responses of the patients group were slower and less accurate than those of the comparison group on both the discrimination and recognition tasks. The patients were less accurate than the comparison subjects in processing spatial features of the stimuli, particularly trajectory, but were unimpaired in processing form attributes (high spatial frequencies and patterns). When the results of pattern and trajectory tasks were matched against the accuracy performance of the comparison group, the patients were less accurate on trajectory than on pattern judgments and less accurate on recognition than on discrimination performance. Conclusions: Schizophrenia, deficits in trajectory discrimination may reflect a disturbance of the dorsal pathway of the visual system, while disturbances of trajectory recognition performance may reflect a deficit in prefrontal systems involved in visual working memory operations.

UR - http://www.scopus.com/inward/record.url?scp=0029974458&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0029974458&partnerID=8YFLogxK

M3 - Article

C2 - 8615416

AN - SCOPUS:0029974458

VL - 153

SP - 687

EP - 692

JO - American Journal of Psychiatry

JF - American Journal of Psychiatry

SN - 0002-953X

IS - 5

ER -