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A review of abnormalities in the perception of visual illusions in schizophrenia

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journal contribution
posted on 2022-04-05, 23:29 authored by DJ King, J Hodgekins, Philippe ChouinardPhilippe Chouinard, VA Chouinard, I Sperandio
Specific abnormalities of vision in schizophrenia have been observed to affect high-level and some low-level integration mechanisms, suggesting that people with schizophrenia may experience anomalies across different stages in the visual system affecting either early or late processing or both. Here, we review the research into visual illusion perception in schizophrenia and the issues which previous research has faced. One general finding that emerged from the literature is that those with schizophrenia are mostly immune to the effects of high-level illusory displays, but this effect is not consistent across all low-level illusions. The present review suggests that this resistance is due to the weakening of top–down perceptual mechanisms and may be relevant to the understanding of symptoms of visual distortion rather than hallucinations as previously thought.


This research was supported by a La Trobe University's Research Focus Area (RFA) Understanding Disease Grant to PAC and IS.


Publication Date



Psychonomic Bulletin and Review






18p. (p. 734-751)





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© The Author(s) 2016. This article is published with open access at This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://, which permits unrestricted use, distribution, and reproduction in any medium, provided you give appro- priate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.