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Cited by 74Schizophrenia research and treatmentVisual perception and processing mechanismsCognitive Abilities and Testing

Dot Enumeration Perceptual Organization Task (DEPOT): Evidence for a short-term visual memory deficit in schizophrenia

Rabinowicz, Esther F., Opler, Lewis A., Owen, David R., Knight, Raymond A.·1996·Journal of Abnormal Psychology
DOI 10.1037/0021-843x.105.3.336
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Abstract

The Dot Enumeration Perceptual Organization Task (DEPOT) evaluates the validity of 2 specific competing cognitive models of early input dysfunction in schizophrenic individuals: a primary Stage 1, sensory store, perceptual organization deficit vs. a Stage 2, short-term visual memory (STVM) deficit. DEPOT was also designed to assess the hypothesis that schizophrenic individuals tend to perform poorly on all cognitive tasks. In DEPOT both number and form judgments are made about the same dot patterns. A response delay manipulation assesses the persistence and operation of STVM. The study included 41 psychotic inpatients (8 with acute and 16 with chronic schizophrenia and 7 with bipolar and 10 with nonbipolar affective disorder) and 38 controls (22 college students and 16 hospital personnel). Although the pattern of results was consistent with neither the Stage 1 deficit nor the general deficit hypotheses, a Stage 2, STVM deficit hypothesis could account parsimoniously for the data.

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  • Patients perform better than control subjects under conditions when global integration would normally interfere with responses to individual elements.

    “Indeed, patients perform better than control subjects under conditions when global integration would normally interfere with responses to individual elements (54,56,58).”

    From Visual perception and its impairment in schizophrenia (2008) · cites this paper as [56]

  • Deficits in object recognition, grouping, perceptual closure, face processing, and reading occur in schizophrenia.

    “These include deficits in object recognition, grouping, perceptual closure, face processing, and reading (54–62).”

    From Visual perception and its impairment in schizophrenia (2008) · cites this paper as [56]

  • There are numerous examples of poor form processing in schizophrenia that would seem to directly implicate integration deficits.

    “There are numerous examples of poor form processing in schizophrenia that would seem to directly implicate integration deficits.”

    From Visual perception and its impairment in schizophrenia (2008) · cites this paper as [56]

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Authors
Rabinowicz, E. F., Opler, L. A., Owen, D. R., & Knight, R. A.
Affiliations
New York State Psychiatric Institute (US)
ORCID
Venue
Journal of Abnormal Psychology
Publisher
American Psychological Association (APA)
Published
1996-08
Volume
105
Issue
3
Pages
336-348
ISSN
  • 0021-843X (ISSN-L)
  • 1939-1846
DOI
10.1037/0021-843x.105.3.336
OpenAlex
W4244746122
Cited by
74
References
0
Citations by year
2018: 3 · 2017: 1 · 2016: 1 · 2015: 2 · 2014: 1 · 2013: 2
FWCI
2.47
Type
journal article
Language
en
Open access
closed
Locations
  • Journal of Abnormal Psychology (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Health Sciences › Medicine › Psychiatry and Mental health › Schizophrenia research and treatment
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Visual perception and processing mechanisms
  • Social Sciences › Psychology › Experimental and Cognitive Psychology › Cognitive Abilities and Testing
Keywords
schizophrenia, visual short-term memory, perceptual organization
MeSH terms
Adult, Attention, Bipolar Disorder, Chronic Disease, Cognition Disorders, Female, Humans, Male, Memory, Short-Term, Neuropsychological Tests, Pattern Recognition, Visual, Perceptual Disorders, Psychometrics, Reference Values, Schizophrenia, Schizophrenic Psychology

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