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| Research article summary (published 30 Mar 2009): |
Is semantic processing impaired in individuals with high schizotypy?
Full Abstract
Semantic processing deficits are present in schizophrenia. However, this research has often been criticized for methodological artifacts and confounds, including long hospitalizations and medication of patient samples. Utilizing high schizotypes (psychosis-prone individuals) can overcome these confounds. Previously, similar deficits have been reported in high schizotypes and schizophrenia on semantic priming tasks. In contrast to schizophrenia research, no other types of semantic processing have been examining in high schizotypes. Semantic processing is multifaceted, thus, deficits on semantic priming can not answer whether high schizotypes have difficulty with explicit semantic processing, that is, on tasks that require the conscious recollection of semantic information. In the current study, 24 high and 30 low scorers on the O-LIFE schizotypy scale were administered a battery of semantic processing measures. The high schizotypy group did not show global semantic processing impairments (as has been shown in schizophrenia), only impairments on a task designed to examine subtle categorization processing. Such deficits can be equated to those found on semantic priming tasks, in that both require quick and accurate access to semantic networks.
Author information
Author/s: Morgan, Celia J A (CJ); Bedford, Nick J (NJ); O'Regan, Alison (A); Rossell, Susan L (SL);
Affiliation: Section of Cognitive Neuropsychiatry, Psychological Medicine, Institute of Psychiatry, London, United Kingdom.
Journal and publication information
Publication Type: Comparative Study; Journal Article; Research Support, Non-U.S. Gov't
Journal: The Journal of nervous and mental disease (J Nerv Ment Dis), published in United States. (Language: eng)
Reference: 2009-Apr; vol 197 (issue 4) : pp 232-8
Dates: Created 2009/04/13; Completed 2009/05/11;
PMID: 19363378, status: MEDLINE (last retrieval date: 5/11/2009, IMS Date: 11 May 2009 00:00:00)
Sourced from the National Library of Medicine. Abstract text and other information may be subject to copyright.
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