情動と筋活動 : 情動の精神生理 : 第7回日本精神身体医学会総会より
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The muscle tone takes important role in mental activity. Therefore electromyography (EMG) which enables us to measure muscle tone quantitatively is indispensable for not only psychosomatics but psychopathology. Almost all skeletal muscle contraction is thought to be percepted consciously as is called voluntary muscle, but using EMG involuntary discharges of muscle contraction can be distinguished from the voluntary ones. It is suggested that involuntary part may correspond to unconsciousness and or subconsciousness. we can use EMG in psychiatry for next four purposes. 1) as psychophysiology 2) application to psychiatric interview 3) as clinical examination 4) as the index of progress in psychotherapy psychopharmacotherapy and autogenic training Some psychophysiological studies which have been carried out in Osaka University Medical school are summarized as below. 1. Tension and Relaxation : The tense subjects (like as graphospasm, blepharospasm, psychogenic tremor etc.) showed marked reinforcement of H reflex in calfmuscle during the ponting test accompanied with other specific polygraphic changes (for example, increment of mental muscle discharge). On the contrary, during autogenic training, attenuation of H reflex and discharges in mental muscle were noted. 2. Pleasantness and Unpleasantness : Discharges in m. corrugator supercilii ; reinforced during unpleasant feeling while that in m. zygomaticus, during pleasant feeling. Therefore, these two muscles were thought emotionally antagonistic. 3. Psychosomatic disorders : Various psychosomatic disorders in muscular system were studied. Psychologically as well as physiologically. Specific psyshological and physiological characters were pointed.
- 日本心身医学会の論文
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