人脑干中的左右不对称性：听觉诱发电位

Right-left asymmetries in the human brain stem: auditory evoked potentials.

作者信息

Levine R A, McGaffigan P M

出版信息

Electroencephalogr Clin Neurophysiol. 1983 May;55(5):532-7. doi: 10.1016/0013-4694(83)90163-3.

Abstract

Right-left asymmetries were found in the amplitudes (but not latencies) of 3 peaks of the brain stem auditory evoked potentials: most consistently in III(+), but also in I(-) and IV(+). In all 3 cases the mean amplitude was significantly larger for right ear stimulation than for left. The similarity between the distribution of cerebral dominance and the asymmetry of peaks III(+) and IV(+) suggests the possibility that cerebral asymmetries for language are related to asymmetries in the brain stem auditory system.

摘要

在脑干听觉诱发电位的3个波峰的波幅（而非潜伏期）中发现了左右不对称性：最一致的是Ⅲ波峰为正向（Ⅲ(+)），但Ⅰ波峰为负向（Ⅰ(-)），Ⅳ波峰为正向（Ⅳ(+)）。在所有这3种情况下，右耳刺激时的平均波幅明显大于左耳。大脑优势分布与Ⅲ(+)和Ⅳ(+)波峰不对称性之间的相似性表明，语言功能的大脑不对称性可能与脑干听觉系统的不对称性有关。