Reduction of Hemifacial Spasm and Dysarthria Following EMG Biofeedback In this case study, a geriatric patient who had an 18-year history of hemifacial spasm was given EMG-biofeedback-assisted relaxation training. No formal speech therapy was provided. Our results confirmed two hypotheses: (a) The patient would learn to reduce frontalis EMG and facial spasm with and then without biofeedback, and (b) ... Reports
Reports  |   February 01, 1984
Reduction of Hemifacial Spasm and Dysarthria Following EMG Biofeedback
 
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Article Information
Reports   |   February 01, 1984
Reduction of Hemifacial Spasm and Dysarthria Following EMG Biofeedback
Journal of Speech and Hearing Disorders, February 1984, Vol. 49, 26-33. doi:10.1044/jshd.4901.26
History: Received July 12, 1982 , Accepted July 11, 1983
 
Journal of Speech and Hearing Disorders, February 1984, Vol. 49, 26-33. doi:10.1044/jshd.4901.26
History: Received July 12, 1982; Accepted July 11, 1983

In this case study, a geriatric patient who had an 18-year history of hemifacial spasm was given EMG-biofeedback-assisted relaxation training. No formal speech therapy was provided. Our results confirmed two hypotheses: (a) The patient would learn to reduce frontalis EMG and facial spasm with and then without biofeedback, and (b) as a result, speech would be markedly improved. At both the 1-month and 15-month follow-up the patient retained the ability to relax his facial muscles with similar carry-over to speech. Possible neurophysiologic mechanisms of action mediating the feedback training are discussed.

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