視器・迷路と頸筋・項筋の自己受容器
スポンサーリンク
概要
- 論文の詳細を見る
1) Five guinea pigs were trained by applying the daily repetition of visual stimulation, and the ous stages of visual training. In this experiment, head movements were registered by means of a ctronystagmograph. The results obtained were as follows : In accordance with proceeding of visual improving adaptability of the individual to visual stimuli. Especially, optic head nystagmus, which appeared markedly at a certain stage of the visual training, had a function of activating occurrence of optic eye nystagmus. 2) In order to analyze physiological role of neck and nuchal muscles in promoting appearance of ch is known to cause ablation of the function of * tripetal impulses originating from muscle spindles, was injected into neck and nuchal muscles of the ned were as follows : Injection of the procaine solution into superficial nuchal muscles showed no demonstrable changes of optic reflexes, whereas when the same procedure was carried out in deep toideus, particularly in the former, pronounced ced in frequency and in amplitude, and in parallel tagmus was strikingly disturbed. Based on these findings, the author concluded that optic head nystagmus is a form of equilibrial pearance of optic eye nystagmus in order to enhance the function of the optic organ and, subsequently to adapt the individual smoothly to changes in the posed to such an intense environmental changes that the optic organ alone cannot react. 3) Furthermore, the author performed the experiment with a rotatory training in order to clarify the physiological roles of rotary head nystagmus, and the following results were obtained: Perrotatory head nystagmus on opening eyes logical roles would exist in activating appearance of perrotatory eye nystagmus so as to adapt the individual smoothly to strenuous changes of the external world. Worthy of note is the fact that injection of procaine solution into deep nuchal tion of postrotatory eye nystagmus. This indicates that in case of rotatory stimulation, proprioceptors of deep nuchal muscles can play an important role in maintaining the equlibrium of the individual in cooperation with the labyrinth and the optic organ.
- 一般社団法人 日本耳鼻咽喉科学会の論文