Cited by 168Schizophrenia research and treatmentVisual perception and processing mechanismsHallucinations in medical conditions

Contrast sensitivity for stationary and drifting spatial frequency gratings in positive- and negative-symptom schizophrenia

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Slaghuis, Walter A.·1998·Journal of Abnormal Psychology

Abstract

To investigate the transient channel deficit hypothesis in schizophrenia, the authors measured the contrast sensitivity for stationary and drifting gratings in groups with positive- and negative-symptom schizophrenia. The negative-symptom group showed a significant reduction in contrast sensitivity for stationary and drifting gratings at low, medium, and high spatial frequencies in comparison to the control group. There were no differences in contrast sensitivity between the control and positive-symptom groups for stationary and drifting gratings at low-spatial frequencies, but there were significant reductions at medium and high spatial frequencies. The results are consistent with a disorder in both sustained and transient channels in negative-symptom schizophrenia and a disorder in sustained channels in positive-symptom schizophrenia.

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Crossref · 10.1037/0021-843x.107.1.49

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  • Behavioral studies have found contrast sensitivity deficits across spatial frequencies, often with thresholds relatively low (e.g., <10% contrast), limiting P-pathway involvement.

    “Although behavioral studies have found contrast sensitivity deficits across spatial frequencies, often thresholds are relatively low (e.g., < 10% contrast; [20]), limiting P-pathway involvement.”

    From Visual perception and its impairment in schizophrenia (2008) · cites this paper as [20]

  • Patients with schizophrenia show preferential M-pathway dysfunction, although deficits have also been observed in parvocellular processing.

    “Patients with schizophrenia show preferential M-pathway dysfunction (21,22,28,35–38), although deficits have also been observed in parvocellular processing (19,20).”

    From Visual perception and its impairment in schizophrenia (2008) · cites this paper as [20]

  • Patients with schizophrenia show decreased contrast sensitivity across a range of grating sizes in behavioral studies.

    “First, patients with schizophrenia show decreased contrast sensitivity (i.e., need more contrast to detect a grating) across a range of grating-sizes in behavioral studies (19,20).”

    From Visual perception and its impairment in schizophrenia (2008) · cites this paper as [20]

  • 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 [20]

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Authors
Slaghuis, W. A.
Affiliations
University of Tasmania (AU)
Corresponding author
Slaghuis, Walter A.
Venue
Journal of Abnormal Psychology
Published
1998-02
Volume
107
Issue
1
Pages
49-62
ISSN
  • 0021-843X (ISSN-L)
  • 1939-1846
OpenAlex
W2006289228
Cited by
168
References
0
Citations by year
2026: 2 · 2025: 2 · 2024: 5 · 2023: 4 · 2022: 7 · 2021: 5 · 2020: 8 · 2019: 6 · 2018: 3 · 2017: 4 · 2016: 4 · 2015: 12 · 2014: 8 · 2013: 12 · 2012: 6
FWCI
2.34
Type
journal article
Language
en
Open access
Licence
cc-by
Locations
  • Journal of Abnormal Psychology (publishedVersion)
  • PubMed (publishedVersion)
  • eCite Digital Repository (University of Tasmania) (submittedVersion)
  • Figshare (submittedVersion, cc-by)
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
contrast sensitivity, schizophrenia, negative symptoms, positive symptoms, drifting gratings, spatial frequency, sustained attention, visual perception
MeSH terms
Adult, Arousal, Delusions, Depression, Female, Humans, Male, Motion Perception, Pattern Recognition, Visual, Psychiatric Status Rating Scales, Schizophrenia, Schizophrenic Psychology, Sensory Thresholds, Contrast Sensitivity

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