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Does Parkinson’s disease affect judgement about another person’s action?

Poliakoff, E, Galpin, AJ, Dick, J and Tipper, S 2010, 'Does Parkinson’s disease affect judgement about another person’s action?' , Experimental Brain Research, 204 (3) , pp. 327-331.

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    Abstract

    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.

    Item Type: Article
    Themes: Subjects / Themes > R Medicine > RA Public aspects of medicine > RA0421 Public health. Hygiene. Preventive Medicine
    Health and Wellbeing
    Schools: Colleges and Schools > College of Health & Social Care > School of Health Sciences > Centre for Health Sciences Research
    Colleges and Schools > College of Health & Social Care
    Colleges and Schools > College of Health & Social Care > School of Nursing, Midwifery, Social Work & Social Sciences > Centre for Social Justice Research
    Journal or Publication Title: Experimental Brain Research
    Publisher: Springer Verlag
    Refereed: Yes
    ISSN: 0014-4819
    Depositing User: Users 47901 not found.
    Date Deposited: 21 Apr 2011 10:49
    Last Modified: 20 Aug 2013 17:50
    URI: http://usir.salford.ac.uk/id/eprint/14929

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