Cited by 225Schizophrenia research and treatmentVisual perception and processing mechanismsHallucinations in medical conditions

Motion perception in schizophrenia

Chen, Yue, Palafox, Germán P., Nakayama, Ken, Levy, Deborah L., Matthysse, Steven, Holzman, Philip S.·1999·Archives of General Psychiatry

Abstract

BACKGROUND: Eye-tracking dysfunction has been found in many patients with schizophrenia and in about 40% of their first-degree biological relatives. We hypothesized that a deficit in motion processing is associated with eye-tracking dysfunction because both motion signals and the brain regions responsible for processing motion signals are implicated in the generation of smooth pursuit. We examined several aspects of visual perception, including motion perception, in patients with schizophrenia. METHODS: To evaluate motion perception, contrast sensitivity for velocity discrimination was measured in patients with schizophrenia (n=15) and normal control subjects (n=18). Contrast sensitivities for orientation discrimination and contrast detection were measured as control tasks. RESULTS: Patients with schizophrenia showed significantly lower contrast sensitivity (ie, higher thresholds) than normal controls for the discrimination of small velocity differences (eg, 11 vs 9 degrees/s). This reduction in contrast sensitivity was severe (up to 10-fold) in about 40% of the patients. No group differences were found on the other tasks. CONCLUSION: The discrimination of small velocity differences is impaired in a subgroup of patients with schizophrenia.

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Crossref · 10.1001/archpsyc.56.2.149

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  • A large number of studies have reported motion processing deficits in schizophrenia.

    “A large number of studies have reported motion processing deficits in schizophrenia (28–32).”

    From Visual perception and its impairment in schizophrenia (2008) · cites this paper as [29]

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Authors
Chen, Y., Palafox, G. P., Nakayama, K., Levy, D. L., Matthysse, S., & Holzman, P. S.
Affiliations
Harvard University (US)
Venue
Archives of General Psychiatry
Published
1999-02-01
Volume
56
Issue
2
Pages
149
ISSN
0003-990X (ISSN-L)
OpenAlex
W1982163126
Cited by
225
References
25
Citations by year
2026: 1 · 2025: 1 · 2024: 4 · 2023: 1 · 2022: 3 · 2021: 2 · 2020: 3 · 2019: 6 · 2018: 4 · 2017: 4 · 2016: 4 · 2015: 4 · 2014: 9 · 2013: 8 · 2012: 9
FWCI
8.55
Type
journal article
Language
en
Open access
closed
Locations
  • Archives of General Psychiatry (publishedVersion)
  • PubMed (publishedVersion)
Funders
National Institute of Mental Health (R01MH049487, MH 31340, P01MH031154, MH-31154, MH 49487, R01MH031340)
Topics
  • Health Sciences › Medicine › Psychiatry and Mental health › Schizophrenia research and treatment
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Visual perception and processing mechanisms
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Hallucinations in medical conditions
Keywords
schizophrenia, motion perception, velocity discrimination, contrast sensitivity, smooth pursuit eye movements, visual perception deficits
MeSH terms
Brain, Eye Movements, Female, Form Perception, Humans, Male, Motion Perception, Psychiatric Status Rating Scales, Pursuit, Smooth, Random Allocation, Sampling Studies, Schizophrenia, Space Perception, Contrast Sensitivity

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