[Perception of physiological visual illusions by individuals with schizophrenia].
Identifieur interne : 003A24 ( Ncbi/Curation ); précédent : 003A23; suivant : 003A25[Perception of physiological visual illusions by individuals with schizophrenia].
Auteurs : Słowomir Ciszewski ; Hubert Michał Wichowicz ; Krzysztof UkSource :
- Psychiatria polska [ 0033-2674 ]
English descriptors
- KwdEn :
- MESH :
- complications : Schizophrenia.
- diagnosis : Perceptual Disorders, Vision Disorders.
- etiology : Perceptual Disorders, Vision Disorders.
- Humans, Optical Illusions, Visual Perception.
Abstract
Visual perception by individuals with schizophrenia has not been extensively researched. The focus of this review is the perception of physiological visual illusions by patients with schizophrenia, a differences of perception reported in a small number of studies. Increased or decreased susceptibility of these patients to various illusions seems to be unconnected to the location of origin in the visual apparatus, which also takes place in illusions connected to other modalities. The susceptibility of patients with schizophrenia to haptic illusions has not yet been investigated, although the need for such investigation has been is clear. The emerging picture is that some individuals with schizophrenia are "resistant" to some of the illusions and are able to assess visual phenomena more "rationally", yet certain illusions (ex. Müller-Lyer's) are perceived more intensely. Disturbances in the perception of visual illusions have neither been classified as possible diagnostic indicators of a dangerous mental condition, nor included in the endophenotype of schizophrenia. Although the relevant data are sparse, the ability to replicate the results is limited, and the research model lacks a "gold standard", some preliminary conclusions may be drawn. There are indications that disturbances in visual perception are connected to the extent of disorganization, poor initial social functioning, poor prognosis, and the types of schizophrenia described as neurodevelopmental. Patients with schizophrenia usually fail to perceive those illusions that require volitional controlled attention, and show lack of sensitivity to the contrast between shape and background.
DOI: 10.12740/PP/27072
PubMed: 26093596
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Słowomir Ciszewski<affiliation><nlm:affiliation>Klinika Chorób Psychicznych i Zaburzeń Nerwicowych GUMed.</nlm:affiliation>
<wicri:noCountry code="no comma">Klinika Chorób Psychicznych i Zaburzeń Nerwicowych GUMed.</wicri:noCountry>
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<wicri:noCountry code="no comma">Klinika Chorób Psychicznych i Zaburzeń Nerwicowych GUMed.</wicri:noCountry>
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<affiliation><nlm:affiliation>Państwowy Szpital dla Nerwowo i Psychicznie Chorych w Starogardzie Gdańskim.</nlm:affiliation>
<wicri:noCountry code="no comma">Państwowy Szpital dla Nerwowo i Psychicznie Chorych w Starogardzie Gdańskim.</wicri:noCountry>
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<front><div type="abstract" xml:lang="en">Visual perception by individuals with schizophrenia has not been extensively researched. The focus of this review is the perception of physiological visual illusions by patients with schizophrenia, a differences of perception reported in a small number of studies. Increased or decreased susceptibility of these patients to various illusions seems to be unconnected to the location of origin in the visual apparatus, which also takes place in illusions connected to other modalities. The susceptibility of patients with schizophrenia to haptic illusions has not yet been investigated, although the need for such investigation has been is clear. The emerging picture is that some individuals with schizophrenia are "resistant" to some of the illusions and are able to assess visual phenomena more "rationally", yet certain illusions (ex. Müller-Lyer's) are perceived more intensely. Disturbances in the perception of visual illusions have neither been classified as possible diagnostic indicators of a dangerous mental condition, nor included in the endophenotype of schizophrenia. Although the relevant data are sparse, the ability to replicate the results is limited, and the research model lacks a "gold standard", some preliminary conclusions may be drawn. There are indications that disturbances in visual perception are connected to the extent of disorganization, poor initial social functioning, poor prognosis, and the types of schizophrenia described as neurodevelopmental. Patients with schizophrenia usually fail to perceive those illusions that require volitional controlled attention, and show lack of sensitivity to the contrast between shape and background.</div>
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