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  • Title: Cultural variation in hemifacial asymmetry of emotion expressions.
    Author: Mandal MK, Harizuka S, Bhushan B, Mishra RC.
    Journal: Br J Soc Psychol; 2001 Sep; 40(Pt 3):385-98. PubMed ID: 11593940.
    Abstract:
    Photographs of hemifacial composites (left-left, right-right and normal presentation, right-left) of these cultures (Japanese, Oriental Indian and North American) displaying six emotions (happy, sad, fear, anger, surprise, disgust) and a neutral state were administered successively (one by one) as well as simultaneously (three hemifacial photographs of an expression at a time) to observers for judgment on a 5-point scale in terms of distinctiveness of expression. Observers' judgments were treated with a culture of expressor x sex of expressor x facial presentation x emotion category mixed factorial ANOVA. Cultures did not vary for their distinctiveness of facial expressions, suggesting universality in this respect. Culture-specificity was, however, observed with respect to hemifacial asymmetry and valence of emotion expressions: (1) Japanese showed a right hemifacial bias for positive and left hemifacial bias for negative emotions; Indians and North Americans showed left hemifacial bias for all emotions, and (2) negative emotion expressions were least distinctly identifiable in Japanese faces followed by Indian and North American faces.
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