Institute of Neurology, Università Cattolica del Sacro Cuore, Rome, Italy.
Neurosci Biobehav Rev. 2022 Oct;141:104830. doi: 10.1016/j.neubiorev.2022.104830. Epub 2022 Aug 27.
A systematic review of investigations evaluating hemispheric asymmetries for emotions in primates was undertaken to individuate the most consistent lines of research allowing to check the hypothesis of a continuum in emotional lateralization across vertebrates. We reviewed studies on the lateralization of emotional expression (N = 31) and perception (N = 32) and of markers of emotional activation (N = 9), trying to distinguish those which had given respectively more consistent or more conflicting outcomes. Furthermore, we tried to identify the most strongly supported model of emotional lateralization. The most consistent results were obtained in studies investigating asymmetries in emotional expression at the facial level and in the perception of emotional facial expressions, whereas the most disappointing data were obtained in investigations evaluating possible neurophysiological markers of lateralized emotional activation. These results supported more the hypothesis of a continuity between humans and non-human primates than the more general hypothesis of a continuum between humans and all vertebrates. Furthermore, results supported more the 'right hemisphere' than the 'valence' model of emotional lateralization.
我们对评估灵长类动物情绪半球不对称性的研究进行了系统回顾，以确定最一致的研究线索，从而检验脊椎动物情绪侧化连续体的假设。我们回顾了关于情绪表达（N=31）、情绪感知（N=32）和情绪激活标记（N=9）的侧化研究，试图区分那些给出更一致或更矛盾结果的研究。此外，我们试图确定最有力支持的情绪侧化模型。在研究面部表情和情绪面部表情感知的不对称性方面，得出了最一致的结果，而在评估可能的神经生理情绪激活标记方面，得出了最令人失望的数据。这些结果更支持人类和非人类灵长类动物之间存在连续性的假设，而不是人类和所有脊椎动物之间存在连续体的更普遍假设。此外，结果更支持情绪侧化的“右脑”模型，而不是“效价”模型。
