Emotions are expressed more intensely on the left side of the face.
Pictures of human faces posing six distinct emotions (plus a neutral expression) and their mirror reversals were split down the midlines, and left-side and right-side composites were constructed. Subjects judged left-side composites as expressing emotions more intensely than right-side composites. The finding indicates hemispheric asymmetry in the control over emotional expression in the face.
D004644:Emotions; D005149:Facial Expression; D005260:Female; D007839:Functional Laterality; D006801:Humans; D008297:Male