前庭迷路脊髄反射に関する研究
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概要
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The deviation of the arm and bodily movement caused of the Vestibulo-spinal Reflex was observed. The arm movements were recorded after the subject was long time in placed for a vertical writing method with eyes covered, with normal upright head position, and the same procedure of writing was repeated with changes in head position and induced by rotatory stimulation. The bodily movements were recorded by tracing the movement of photoelectric bulb. Simultaneously, the relation between bodily movement and rotatory nystagmus was pursued.The results were as follows:1) All of normal cases showed " no deviation of the arm" (in writing method).2) Seventy-five percent of cases with vertigo showed "deviation of the arm" (in writing method).3) After rotatory stimulation the deviation of the arm in writing method showed one-phasic change in rotation of 20 and 30 degrees per second and two-phasic change in rotation of 60 degrees per second.4) The rotatory stimulation caused bodily movements, with the degree of bodily movement depending on the intensity of rotatory stimulation.This relationship was more marked than the individual index of stability.5) In bodily movement and rotatory nystagmus, a quantitative interdepence between stimulation and responses was observed : When the stimulation was greater the latency was shortened. and the duration seemed prolonged and bodily movement curves were generally parallel with nystagmus curves: However the differences between nystagmus and bodily movement seen were that the latency of nystagmus was shorter than that of bodily movement, and the bodily movement disappeared earlier than nystagmus.
- 一般社団法人 日本耳鼻咽喉科学会の論文