Asymmetry in Facial Emotional Expression.

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Asymmetry in Facial Emotional Expression. Abstract 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 …

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…level of 0.5. Discussion These results show that the LL composites were judged to be more emotionally expressive than the RR composites. This suggests that the left side of the face expresses emotion more intensely than the right side of the face, thus supporting the hypothesis being tested. This hypothesis is in agreement with Sackheim and Gurís finding in 1978 that the left side of the face shows more emotion more intensely than the right side.