Document Detail

Motor features in psychotic disorders. I. Factor structure and clinical correlates.
MedLine Citation:
PMID:  11278127     Owner:  NLM     Status:  MEDLINE    
The dimensional structure of motor disorders remains largely unknown. This study aimed to ascertain the factor structure of motor signs and their clinical correlates in psychotic disorders. A sample of consecutive admissions of psychotic patients (n=187) was utilized to examine the factor structure of motor disorders as assessed by the Modified Rogers Scale (MRS). The relationship between motor dimensions and external variables was analyzed. A comparative examination of alternative factor solutions revealed that a six-factor structure, explaining 59% of the total variance, best fitted the 36 MRS items. This solution comprised the components of motor poverty, agitation, stereotypy/mannerisms, proskinetic, negativistic and dyskinetic. All the motor dimensions significantly improved over the psychotic episode. Motor dimensions differentially correlated with the syndromes of psychoses, with the association between motor poverty and the negative syndrome being particularly strong. Residual motor pathology, but not the acute one, was related to various clinical variables. Residual symptoms of motor poverty and stereotypy/mannerisms were associated with poor premorbid adjustment, more illness severity and a diagnosis of schizophrenia. It is concluded that the factor structure of motor disorders and its clinical correlates are rather more complex than generally acknowledged.
V Peralta; M J Cuesta
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Schizophrenia research     Volume:  47     ISSN:  0920-9964     ISO Abbreviation:  Schizophr. Res.     Publication Date:  2001 Mar 
Date Detail:
Created Date:  2001-03-30     Completed Date:  2001-06-28     Revised Date:  2010-09-02    
Medline Journal Info:
Nlm Unique ID:  8804207     Medline TA:  Schizophr Res     Country:  Netherlands    
Other Details:
Languages:  eng     Pagination:  107-16     Citation Subset:  IM    
Psychiatric Unit, Virgen del Camino Hospital, Irunlarrea 4, E-31008 Pamplona, Spain.
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MeSH Terms
Factor Analysis, Statistical
Psychomotor Disorders / diagnosis,  epidemiology,  etiology*
Psychotic Disorders / psychology*,  rehabilitation
Reproducibility of Results
Schizophrenia / complications
Severity of Illness Index

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