Cognitive Neuroscience Unit, School of Psychology, Deakin University, Burwood, Australia.
Institute for Health and Sport, Victoria University, Melbourne, Australia.
Laterality. 2024 Jul;29(4):365-379. doi: 10.1080/1357650X.2024.2377633. Epub 2024 Jul 17.
Facial emotion processing (FEP) tends to be right hemisphere lateralized. This right-hemispheric bias (RHB) for FEP varies within and between individuals. The aim of the present research was to examine evidence pertaining to the prominent theories of FEP hemispheric bias as measured by a half-emotional half-neutral (no emotion) chimeric faces task. FEP hemispheric bias was indexed using laterality quotients (LQs) calculated from a Chimeric Faces Task completed by 427 adults recruited from the general population aged 18-67 years. Participants indicated which of two identical (but mirrored) emotional-neutral chimeric faces were more emotive. While all investigated emotions (fear, anger, and happiness) were right lateralized, fear was significantly more right lateralized than anger and happiness. These results provide evidence for both the right hemisphere hypothesis and the motivational hypothesis of emotion perception.
面部情绪处理（FEP）往往偏向于右半球。这种 FEP 的右半球偏向（RHB）在个体内部和个体之间存在差异。本研究的目的是通过半情绪半中性（无情绪）嵌合面孔任务来检验与 FEP 半球偏向的主要理论相关的证据。通过对从普通人群中招募的 427 名年龄在 18-67 岁的成年人完成的嵌合面孔任务计算的侧化指数（LQ）来评估 FEP 的半球偏向。参与者需要指出两个相同（但镜像）的情绪-中性嵌合面孔中哪一个更具表情。虽然所有研究的情绪（恐惧、愤怒和快乐）都是右侧化的，但恐惧比愤怒和快乐更明显地右侧化。这些结果为情绪感知的右半球假说和动机假说提供了证据。
