聴性脳幹反応の陽性緩徐波成分と下丘
蝸牛および下丘破壊による観察
1982 年 25 巻 4 号 p. 243-250
詳細
1982 年 25 巻 4 号 p. 243-250
ABR seems to be a composite of both several sequential fast waves and a slowly shifting vertex-positive potential (positive slow wave of the ABR). The relation of the positive slow wave and the inferior colliculus was studied by two different experiments in rats: (1) observation of the evoked potentials in the inferior colliculus and the ABR changes in different places of the scalp before and after destruction of unilateral cochlea, and (2) observation of the evoked potentials and the wave forms of the ABRs before and after destructions of the inferior colliculus.
As the results, the central nucleus of the inferior colliculus was found to play an important part of the positive slow component of the ABR, however, it might not be essential for generation of the several sequential fast waves of the ABR.
