蒙古沙鼠第八对脑神经复合动作电位（CAP）对侧抑制的发展

Development of contralateral suppression of the VIIIth nerve compound action potential (CAP) in the Mongolian gerbil.

作者信息

Huang J M, Berlin C I, Cullen J K, Wickremasinghe A R

机构信息

Kresge Hearing Research Laboratory of the South, Department of Otorhinolaryngology, Louisiana State University Medical Center, New Orleans 70112.

出版信息

Hear Res. 1994 Aug;78(2):243-8. doi: 10.1016/0378-5955(94)90030-2.

DOI:10.1016/0378-5955(94)90030-2

PMID:7982816

Abstract

We studied whether same-frequency contralateral tones of 65 dB pSPL (peak Sound Pressure Level) suppress the VIIIth nerve compound action potential (CAP) evoked by 40-45 dB pSPL tone pips in the Mongolian gerbil from 22 to 92 days after birth (DAB). The primary stimuli were tone pips of 1, 2, 4, 8, and 10 kHz; only the 1 kHz CAP amplitude was suppressed significantly by tones of the same frequency. The suppression was seen at 22 DAB, and underwent little relative change with development.

摘要

我们研究了65分贝声压峰值水平（pSPL）的同频对侧音是否会抑制出生后22至92天（DAB）的蒙古沙鼠中由40 - 45分贝pSPL音脉冲诱发的第八对脑神经复合动作电位（CAP）。主要刺激音为1、2、4、8和10千赫兹的音脉冲；只有1千赫兹的CAP幅度受到同频音的显著抑制。这种抑制在出生后22天即可观察到，并且随着发育相对变化不大。