迷路直流通電刺激による筋反応

内耳性筋反応に関する研究

抄録

Musculor responses to positive and negative galvanic stimulation (4V.150-300, uA) of the labyrinth are studied in rabbits electromyographically and clinically, and the results obtained are as follows1.The labyrinthine muscular responses are mainly observed on the deep nape muscles (M.rectus capitis posterior major et minor, and M.obliquus capitis superior), the deep back muscles(Mm.sacrospinales) and the flexor muscle of the forelegs (M.articuloulnaris) in the contralateral side of the stimulated labyrinth, and on the extensor muscles (Mm.anconaei) in the ipsilateral side.
2.Negative galvanic stimulation of the labyrinth facilitates its functions, while positive galvanic stimulation inhibits them.
3.The same results were obtained in the decerebrated, resected of cervical nerves (C1-C4), or one-side-labyrinthectomized rabbits as in the normal.
4.In the superficial nape muscules (M.trapezius and M.splenius) the labyrinthine muscular tonus and the reaction to galvanic stimulation of the labyrinth are hardly found.According to the, results obtained by repeated galvanic stimulation of the labyrinth, the superficial nape muscles act as an antagonist of the deep nape muscles of the contralateral side.
5.The labyrinthine eye- and head-deviation are clinically observed and compared with the electromyographical studies, when the labyrinth is stimulated by galvanic stimulation kn-abstract=