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

Poliakoff, E, Galpin, AJ ORCID:, 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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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: Schools > School of Health and Society > Centre for Applied Research in Health, Welfare and Policy
Schools > School of Health and Society > Centre for Health Sciences Research
Journal or Publication Title: Experimental Brain Research
Publisher: Springer
Refereed: Yes
ISSN: 0014-4819
Depositing User: Users 47901 not found.
Date Deposited: 21 Apr 2011 09:49
Last Modified: 16 Feb 2022 11:20

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