Cited by 55Schizophrenia research and treatmentMental Health and PsychiatryHallucinations in medical conditions

Visual information processing in positive, mixed, and negative schizophrenic syndromes

WEINER, RICHARD U., OPLER, LEWIS A., KAY, STANLEY R., MERRIAM, ARNOLD E., PAPOUCHIS, NICHOLAS·1990·The Journal of Nervous and Mental Disease

Abstract

The purpose of this study was to determine whether schizophrenics with positive, mixed, and negative syndromes are distinguished in terms of visual stimulus registration thresholds and efficiency of information processing. Forty-five schizophrenic inpatients were classified accordingly into groups of 15 each and compared with one another and with 15 normal control subjects on a visual backward masking task. Repeated-measures analysis of variance revealed that all three schizophrenic groups were less efficient information processors than were normal subjects. Relative to the positive group, the negative group displayed significantly longer registration thresholds, fewer correct target stimulus detections, and longer time intervals to achieve their first significant improvement in performance and to first exceed chance response levels. The three syndrome groups were not significantly different in their rates of improvement over trials. Secondary correlational analyses showed that the information-processing measures were unrelated to a variety of demographic, psychiatric, and cognitive developmental variables, although shorter recognition thresholds and shorter unmasking interval scores were associated with faster psychomotor rates. Complex interrelationships were uncovered between the information-processing measures, positive and negative symptomatology, and general psychopathology. The results were interpreted as supporting the validity of the positive-negative distinction for explaining some of the heterogeneity in schizophrenia.

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Crossref · 10.1097/00005053-199010000-00002

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  • Gain control deficits are related to symptomatology.

    “There is also evidence that gain control deficits, seen in contrast detection and M-pathway deficits, are important in predicting outcome (22,45), and are related to higher-level problems in perceptual organization (28,46) and to symptomatology (20,47–51).”

    From Visual perception and its impairment in schizophrenia (2008) · cites this paper as [51]

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Authors
WEINER, R. U., OPLER, L. A., KAY, S. R., MERRIAM, A. E., & PAPOUCHIS, N.
Affiliations
  • Columbia University (US)
  • Albert Einstein College of Medicine (US)
  • Long Island University (US)
Venue
The Journal of Nervous and Mental Disease
Published
1990-10
Volume
178
Issue
10
Pages
616-626
ISSN
0022-3018 (ISSN-L)
OpenAlex
W2093250684
Cited by
55
References
0
Citations by year
2022: 1 · 2015: 1 · 2014: 1
FWCI
3.32
Type
journal article
Language
en
Open access
closed
Locations
  • The Journal of Nervous and Mental Disease (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Health Sciences › Medicine › Psychiatry and Mental health › Schizophrenia research and treatment
  • Social Sciences › Arts and Humanities › Philosophy › Mental Health and Psychiatry
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Hallucinations in medical conditions
Keywords
schizophrenia, positive symptoms, negative symptoms, visual processing, backward masking, psychomotor speed, symptom heterogeneity, schizophrenia subtypes
MeSH terms
Adolescent, Adult, Attention, Cognition Disorders, Hospitalization, Humans, Male, Memory, Middle Aged, Perceptual Masking, Prognosis, Psychiatric Status Rating Scales, Psychological Tests, Psychomotor Performance, Reaction Time, Schizophrenia, Schizophrenic Psychology, Visual Perception

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