A study of emotional change and physiological response evoked by passive change of facial expression

我们发现了一个新的原理，即面部表情的被动变化会改变情绪或情绪。例如，当两只眼睛都被动地睁开时，受试者会感到神清气爽，他们的大脑运作良好。与被动表达前相比，被动表达5分钟后，心理测验的正分增加，负分减少。在前脑区域，α和β条带的力量以及脑血流量在这种被动表达过程中增加。交感神经活动也在这一阶段占主导地位。观察结果似乎与提神的主观感觉是一致的。

We found a novel principle that the passive change of the facial expression alters feelings or moods. For example, subjects felt refreshed and their mind worked well when both eyes were passively opened. After this passive expression for five minutes, the positive score of psychological tests increased and negative scores decreased compared to those conducted before the passive expression. In the forebrain regions, the powers ofαandβbands as well as brain blood flow increased during this passive expression. Sympathetic activities also became dominant in this phase. The observations seemed to be consistent with the subjective feeling of refreshment.