Electromyographic analysis on the facial expression : Difference between actors and nonactors

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  • 表情の筋電図による分析 : 演劇経験者と非演劇経験者での違い
  • ヒョウジョウ ノ キンデンズ ニ ヨル ブンセキ エンゲキ ケイケンシャ ト

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Abstract

In this paper, EMG was used to analyze facial expressions of sadness, joy, and anger, and also to analyze facial expressions shown while watching the film of aversive stimuli. Subjects were female who had an experience of performing on stage and those who had no experience of such. The facial muscles which was analyzed are as follows; M.frontalis, M.corrugator supercilii, M.orbicularis oculi, M.zygomaticus major, M.levator labii superioris, and M.depressor angulioris. Results were followings, 1) typical muscle movements of M.orbicularis oculi, M.zygomaticus major, and M.levator labii superioris was seen when the expression of joy was shown, 2) typical muscle movement of M.corrugator supercilii was seen when at unpleasant facial expressions such as sadness and anger, 3) In the case of actors, typical muscle movement of M.corrugator supercilii was seen when at facial expression of joy, M.zygomaticus major at facial expression of anger, M.frontalis, M.zygomaticus major, M.levator labii superioris, and M.depressor angulioris at facial expression of sadness.

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