Psychologists call this the facialfeedbackhypothesis.
心理学家称之为脸部反馈假设。
2
A way to test the facialfeedbackhypothesis is to associate what muscles are used while displaying a certain emotion; since muscles in the face are responsible for the faces appearance.
面部反馈假说的一种方法是联想到在显示某种情绪时事什么肌肉在使用,因为脸部肌肉负责面部表情。
3
At the time, Finzi explained the results using the "facialfeedbackhypothesis" — a feedback loop in which people frown back at a depressed person, further deepening that person's sense of isolation.