Perceptual changes in schizophrenia: a questionnaire survey

Questionnaires were completed by 73 volunteers with a history of probable schizophrenia, and by 67 patients admitted to the accident wards of a general hospital. A high incidence of sensory distortions was recorded in the schizophrenic group compared with the controls, distortions of brightness cont...

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Bibliographic Details
Published inPsychological medicine Vol. 15; no. 4; p. 859
Main Authors Phillipson, O T, Harris, J P
Format Journal Article
LanguageEnglish
Published England 01.11.1985
Subjects
Adult
Auditory Perception
Female
Hallucinations - complications
Humans
Male
Perception
Perceptual Disorders - complications
Perceptual Distortion
Schizophrenia - complications
Schizophrenic Psychology
Visual Perception
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Summary:Questionnaires were completed by 73 volunteers with a history of probable schizophrenia, and by 67 patients admitted to the accident wards of a general hospital. A high incidence of sensory distortions was recorded in the schizophrenic group compared with the controls, distortions of brightness contrast being the most common. Many schizophrenic patients reported that such distortions were reduced or removed early in treatment. Patients who reported visual distortions also tended to report visual hallucinations. The results are discussed with reference to the hypothesis that perceptual malfunction may underlie some other schizophrenic disorders such as delusions or catatonia.
ISSN:0033-2917
DOI:10.1017/s0033291700005092