This Article Full Text (PDF) All Versions of this Article: 0269215508098896v1 23/3/229    most recent References Alert me when this article is cited Alert me if a correction is posted Citation Map Services Email this article to a friend Similar articles in this journal Similar articles in PubMed Alert me to new issues of the journal Add to Saved Citations Download to citation manager Request Permissions Request Reprints Add to My Marked Citations Citing Articles Citing Articles via Google Scholar Citing Articles via Scopus Google Scholar Articles by Ma, H.-I. Articles by Lin, K.-C. Search for Related Content PubMed PubMed Citation Articles by Ma, H.-I. Articles by Lin, K.-C. Social Bookmarking                         What's this?

The effects of two different auditory stimuli on functional arm movement in persons with Parkinson's disease: a dual-task paradigm

Department of Occupational Therapy & Institute of Allied Health Sciences, College of Medicine, National Cheng Kung University, huingma{at}mail.ncku.edu.tw

Wen-Juh Hwang

Department of Neurology, College of Medicine, National Cheng Kung University

Keh-Chung Lin

School of Occupational Therapy, College of Medicine, National Taiwan University and Department of Physical Medicine and Rehabilitation, National Taiwan University Hospital, Taipei, Taiwan

Objective: To examine, in a dual-task paradigm, the effect of auditory stimuli on people with Parkinson's disease.

Design: A counterbalanced repeated-measures design.

Setting: A motor control laboratory in a university setting.

Subjects: Twenty individuals with Parkinson's disease.

Experimental conditions: Each participant did two experiments (marching music experiment and weather forecast experiment). In each experiment, the participant performed an upper extremity functional task as the primary task and listened to an auditory stimulus (marching music or weather forecast) as the concurrent task. Each experiment had three conditions: listening to the auditory stimulus, ignoring the auditory stimulus and no auditory stimulus.

Main measures: Kinematic variables of arm movement, including movement time, peak velocity, deceleration time and number of movement units.

Results: We found that performances of the participants were similar across the three conditions for the marching music experiment, but were significantly different for the weather forecast experiment. The comparison of condition effects between the two experiments indicated that the effect of weather forecast was (marginally) significantly greater than that of marching music.

Conclusions: The results suggest that the type of auditory stimulus is important to the degree of interference with upper extremity performance in people with Parkinson's disease. Auditory stimuli that require semantic processing (e.g. weather forecast) may distract attention from the primary task, and thus cause a decline in performance.

This version was published on March 1, 2009

Clinical Rehabilitation, Vol. 23, No. 3, 229-237 (2009)
DOI: 10.1177/0269215508098896


CiteULike    Complore    Connotea    Del.icio.us    Digg    Reddit    Technorati    Twitter    What's this?