Silberman E K, Weingartner H
Brain Cogn. 1986 Jul;5(3):322-53. doi: 10.1016/0278-2626(86)90035-7.
We have reviewed the evidence that processes and functions related to perception and expression of emotions are represented asymmetrically in the cerebral hemispheres. The literature describes three possible aspects of emotional lateralization: that emotions are better recognized by the right hemisphere; that control of emotional expression and related behaviors takes place principally in the right hemisphere; and that the right hemisphere is specialized for dealing with negative emotions, while the left is specialized for dealing with positive emotions. Evidence for the three hypotheses derives from methodologically diverse studies in unimpaired, brain-lesioned, and mood-disordered populations. Relatively little of the work has been precisely replicated, and conclusions rest on parallel lines of evidence from diverse sources. The present level of knowledge suggests a model of emotional control based on interactive inhibition between a right negatively biased and left positively biased hemisphere. However, the details of such a model, including the precise conditions under which emotion-related functions are lateralized, and the mechanisms of such lateralization have yet to be elucidated.
我们回顾了有关情感感知和表达相关的过程及功能在大脑半球中不对称表征的证据。文献描述了情感偏侧化的三个可能方面：情感在右半球能得到更好的识别；情感表达及相关行为的控制主要发生在右半球；右半球专门处理负面情绪，而左半球专门处理正面情绪。这三个假设的证据来自对未受损人群、脑损伤人群和情绪障碍人群的多种方法学研究。相对而言，很少有研究被精确重复，结论基于来自不同来源的平行证据线。目前的知识水平表明了一种基于右半球负向偏向和左半球正向偏向之间交互抑制的情感控制模型。然而，这种模型的细节，包括情感相关功能发生偏侧化的精确条件以及这种偏侧化的机制，仍有待阐明。
