TY - JOUR
T1 - The effects of two different auditory stimuli on functional arm movement in persons with Parkinson's disease
T2 - A dual-task paradigm
AU - Ma, Hui Ing
AU - Hwang Wen-Juh, W. J.
AU - Lin, Keh Chung
PY - 2009
Y1 - 2009
N2 - Objective: To examine, in a dual-task paradigm, the effect of auditory stimuli on people with Parkinson's disease. Design: A counter balanced 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.
AB - Objective: To examine, in a dual-task paradigm, the effect of auditory stimuli on people with Parkinson's disease. Design: A counter balanced 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.
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U2 - 10.1177/0269215508098896
DO - 10.1177/0269215508098896
M3 - Article
C2 - 19129263
AN - SCOPUS:60149103139
SN - 0269-2155
VL - 23
SP - 229
EP - 237
JO - Clinical Rehabilitation
JF - Clinical Rehabilitation
IS - 3
ER -