| Why is magical ideation related to leftward deviation on an implicit line bisection task? | |
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MedLine Citation:
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PMID: 12056692 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Right hemispatial inattention is a neurocognitive deficit observed in thought-disordered schizophrenia patients, persons with schizotypal personality disorder and healthy participants with high scores on schizotypy scales. We administered a schizotypy inventory, the Magical Ideation (MI) scale, to forty healthy, right-handed men who had copied and later recalled the Rey-Osterrieth complex figure. Implicit line bisection performances were defined as the bisecting lines of the complex figure's large rectangle and were recorded for the copy and delay conditions. MI scores were significantly correlated with a leftward shift in bisections in the delay but not copy condition, indicating a significant relationship between the degree of right hemispatial inattention and number of magical beliefs in healthy participants. We describe a model in which these beliefs are conceptualized as a consequence of a hemispheric imbalance, specifically, of a "right hemisphere processing bias". This model accounts for (1) the leftward shifts in spatial attention and (2) the language deficits associated with psychosis and related symptom clusters which have hitherto been addressed in separate literatures. Clinically, the Rey-Osterrieth test may provide a means to assess implicit hemispatial inattention in psychotic patients. |
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Authors:
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Kirsten I Taylor; Peter Zäch; Peter Brugger |
Publication Detail:
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Type: Comparative Study; Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: Cortex; a journal devoted to the study of the nervous system and behavior Volume: 38 ISSN: 0010-9452 ISO Abbreviation: Cortex Publication Date: 2002 Apr |
Date Detail:
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Created Date: 2002-06-11 Completed Date: 2002-12-24 Revised Date: 2009-11-11 |
Medline Journal Info:
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Nlm Unique ID: 0100725 Medline TA: Cortex Country: Italy |
Other Details:
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Languages: eng Pagination: 247-52 Citation Subset: IM |
Affiliation:
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Department of Neurology, University Hospital, Zürich, Switzerland. kirsten.taylor@nos.usz.ch |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Adult Attention / physiology* Functional Laterality / physiology* Humans Magic / psychology* Male Middle Aged Neuropsychological Tests Schizophrenia / diagnosis*, physiopathology Schizophrenic Psychology Schizotypal Personality Disorder / diagnosis*, physiopathology |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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