Asymmetry in Facial Emotional Expression. Research in the past has demonstrated that the right hemisphere of the brain is dominant in the perception and expression of emotion. As a result of crossing of the nervous system, the expectation was that the left side of the face would express emotion more intensely than the right. This was tested by using left and right composite faces, showing them to participants, asking them to rate which of the two faces was more intense. The finding was that participants judges the left composites to be more emotionally intense than the right composites, thus supporting the hypothesis that there is asymmetry in the facia....

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