Document Detail


Schizotypy and handedness in Japanese participants, revisited.
MedLine Citation:
PMID:  18720208     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Although previous studies have suggested a relationship between mixed-handedness and schizotypic symptoms, possibly indicating a predisposition to schizophrenia, the participants involved were exclusively from Western cultures. Only two reports have examined the relationship between handedness and schizotypy in Asian cultures, and both of these studies failed to show a significant association between mixed-handedness and schizotypy, possibly due to cultural pressures against left-handedness. In the present study we examined the relationship between handedness and schizotypy among Japanese participants (N=231, study 1; N=274, study 2). In order to avoid cultural biases, we used a modified handedness scale in addition to the traditional scale developed in Western cultures. As a result, we show for the first time that mixed-handed Japanese participants have the strongest schizotypal traits, particularly positive schizotypic traits (p<.05). These results suggest that positive schizotypal traits may be universally associated with mixed-handedness or atypical cerebral lateralisation, even in non-Western cultures.
Authors:
Tomohisa Asai; Yoshihiko Tanno
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Publication Detail:
Type:  Comparative Study; Journal Article     Date:  2008-08-19
Journal Detail:
Title:  Laterality     Volume:  14     ISSN:  1464-0678     ISO Abbreviation:  Laterality     Publication Date:  2009 Jan 
Date Detail:
Created Date:  2009-01-06     Completed Date:  2009-04-23     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9609064     Medline TA:  Laterality     Country:  England    
Other Details:
Languages:  eng     Pagination:  86-94     Citation Subset:  IM    
Affiliation:
Department of Cognitive and Behavioral Science, Graduate School of Arts and Sciences, The University of Tokyo, Japan. as@beck.c.u-tokyo.ac.jp
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MeSH Terms
Descriptor/Qualifier:
Adolescent
Cross-Cultural Comparison*
Female
Functional Laterality*
Humans
Individuality
Japan
Male
Neurologic Examination
Psychiatric Status Rating Scales
Schizotypal Personality Disorder / ethnology*,  psychology
Social Values
Young Adult

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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