Acoustic Evaluation of acupuncture therapy effects on post-stroke dysarthria

중풍으로 인한 마비성 조음장애 환자의 침술 후 말소리의 음향학적 평가 연구

  • Moon, B.S. (Dept. of Internal medicine, College of Oriental Medicine, Wonkwang University) ;
  • Yun, J.M. (Dept. of Internal medicine, College of Oriental Medicine, Wonkwang University) ;
  • Shin, Y.I. (Dept. of Rehabilitation Medicine, College of Oriental Medicine, Wonkwang University) ;
  • Kim, H.G. (Research InstituteofSpeechScience,ChonbukNationalUniversity)
  • 문병순 (원광대학교 한의과대학 심계내과학교실) ;
  • 윤종민 (원광대학교 한의과대학 심계내과학교실) ;
  • 신용일 (원광대학교 의과대학 재활의학교실) ;
  • 김현기 (전북대학교 음성과학연구소/임상언어병리학과)
  • Published : 2007.05.18

Abstract

Stroke makes several physical deficits. Dysarthria is one of the most difficult problems in conventional medicine because of the weakness of neuromotor control. The purpose of this study is to find the acoustic characteristics of acupuncture therapy effects on post-stroke dysarthria. Seven patients with stroke(infarction or hemorrhage) were selected by CT or MR imaging. The authors applied acupuncture therapy by inserting needles into 8 acupuncture points, ipsilateral ST4, ST6 and contralateral LI4, ST36 on facial palsy side, and CV23, CV24, bilateral "Sheyu" for 4 weeks. Speech sample were composed of five simple vowels /a,e,i,o,u/ and meaningless polysyllabic words CVCVC(C: stops, affricated, fricative sounds, v: /e/). .VOT, total duration of each speech samples and vowel formant (F1&F2) were analyzed on Spectrogram. The results are as follows: 1. VOT of bilabial and velar stops was decreased post treatment. The VOT of bilabial glottalized pre and post treatment were statistically significant (p < 0.05). 2. Total duration of polysyllabic words was decreased post treatment. Decrement of total duration containing the bilabial was statistically significant (p<0.05). 3. First formant of round vowel /o/ pre and post treatment was statistically significant (p<0.05).

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