Davidson R J
Department of Psychology, University of Wisconsin, Madison 53706.
Int J Neurosci. 1988 Mar;39(1-2):71-89. doi: 10.3109/00207458808985694.
An overview of the use of EEG to assess hemispheric differences in cognitive and affective processes is presented. Some of the advantages of using EEG to assess asymmetric hemispheric differences in the study of complex mental activity are described. Following this brief introduction, two conceptual issues which are central to studies of EEG asymmetries are introduced: (1) the distinction between hemispheric specialization and activation, and (2) the importance of rostral-caudal differences for the understanding of both specialization and activation. Three methodological issues in the use of EEG to assess hemispheric differences are then presented: (1) the use of asymmetry metrics, (2) muscle artifact, and (3) appropriate reference electrode location. Finally, some empirical examples of using EEG to assess affective and cognitive processes which illustrate these conceptual and methodological issues are described.
本文概述了使用脑电图（EEG）评估认知和情感过程中半球差异的情况。描述了在复杂心理活动研究中使用EEG评估不对称半球差异的一些优点。在这一简要介绍之后，引入了EEG不对称性研究的两个核心概念问题：（1）半球特化与激活之间的区别，以及（2）头尾差异对于理解特化和激活的重要性。然后介绍了使用EEG评估半球差异的三个方法学问题：（1）不对称度量的使用，（2）肌肉伪迹，以及（3）合适的参考电极位置。最后，描述了一些使用EEG评估情感和认知过程的实证例子，这些例子说明了这些概念和方法学问题。
