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The Cardiff Anomalous Perceptions Scale (CAPS): A New Validated Measure of Anomalous Perceptual Experience

Bell, Vaughan, Halligan, Peter and Ellis, Hadyn D. 2006. The Cardiff Anomalous Perceptions Scale (CAPS): A New Validated Measure of Anomalous Perceptual Experience. Schizophrenia Bulletin 32 (2) , pp. 366-377. 10.1093/schbul/sbj014

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The study describes the Cardiff Anomalous Perceptions Scale (CAPS), a new validated measure of perceptual anomalies. The 32-item CAPS measure is a reliable, self-report scale, which uses neutral language, demonstrates high content validity, and includes subscales that measure distress, intrusiveness, and frequency of anomalous experience. The CAPS was completed by a general population sample of 336 participants and 20 psychotic inpatients. Approximately 11% of the general population sample scored above the mean of the psychotic patient sample, although, as a group, psychotic inpatients scored significantly more than the general population on all CAPS subscales. A principal components analysis of the general population data revealed 3 components: “clinical psychosis” (largely Schneiderian first-rank symptoms), “temporal lobe disturbance” (largely related to temporal lobe epilepsy and related seizure-like disturbances) and “chemosensation” (largely olfactory and gustatory experiences), suggesting that there are multiple contributory factors underlying anomalous perceptual experience and the “psychosis continuum.”

Item Type: Article
Date Type: Publication
Status: Published
Schools: Psychology
Subjects: B Philosophy. Psychology. Religion > BF Psychology
R Medicine > RC Internal medicine > RC0321 Neuroscience. Biological psychiatry. Neuropsychiatry
Uncontrolled Keywords: hallucination; psychometric scale; psychosis continuum; schizophrenia
Publisher: Oxford University Press
ISSN: 0586-7614
Last Modified: 23 Oct 2017 13:50

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