Document Detail

Does Parkinson's disease affect judgement about another person's action?
MedLine Citation:
PMID:  19690842     Owner:  NLM     Status:  MEDLINE    
The observer's motor system has been shown to be involved in observing the actions of another person. Recent findings suggest that people with Parkinson's disease do not show the same motor facilitatory effects when observing the actions of another person. We studied whether Parkinson's patients were able to make unspeeded judgements about another person's action. Participants were asked to watch video clips of an actor lifting a box containing different weights (100, 200, 300 or 400 g) and to guess the weight that was being lifted on a 9-point scale. We compared the performance of 16 patients with PD with 16 healthy age-matched controls. Both groups were able to do the task, showing a significant relationship between the real weight and the guessed weight, albeit with a tendency to overestimate the lowest weight and underestimate the heaviest weight. The PD patients, however, showed a reduced slope value. These results show that despite their own motor deficits, PD patients are still able to judge the weight being lifted by another person, albeit with a slight reduction in accuracy. Further research will be required to determine whether PD patients use a motor simulation or a visual compensatory strategy to achieve this.
E Poliakoff; A J Galpin; J P R Dick; S P Tipper
Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2009-08-19
Journal Detail:
Title:  Experimental brain research     Volume:  204     ISSN:  1432-1106     ISO Abbreviation:  Exp Brain Res     Publication Date:  2010 Jul 
Date Detail:
Created Date:  2010-07-02     Completed Date:  2010-10-22     Revised Date:  2013-12-13    
Medline Journal Info:
Nlm Unique ID:  0043312     Medline TA:  Exp Brain Res     Country:  Germany    
Other Details:
Languages:  eng     Pagination:  327-31     Citation Subset:  IM    
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MeSH Terms
Analysis of Variance
Case-Control Studies
Middle Aged
Motion Perception*
Motor Activity*
Parkinson Disease / psychology*
Social Perception*
Video Recording
Grant Support
G-8043//Parkinson's UK

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

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