All smiles perceived equally: Facial expressions trump target characteristics in impression formation

Race, gender, and emotionally expressive facial behavior have been associated with trait inferences in past research. However, it is unclear how interactions among these factors influence trait perceptions. In the current research, we test the roles of targets’ race, gender, and facial expression along with participants’ culture in predicting personality ratings. Caucasian and Asian-American participants rated the big-5 personality traits of either smiling or inexpressive photographs of Caucasian and Asian male and female faces. Ratings of extraversion, agreeableness, and conscientiousness differed significantly across inexpressive targets as a function of race and gender categorization and individual characteristics. Smiling was associated with reduced variation in perceptions of targets’ extraversion and agreeableness relative to ratings made of inexpressive targets. In addition, participant culture generally did not significantly impact trait ratings. Results suggest that emotionally expressive facial behavior reduces the use of information based on race or gender in forming impressions of interpersonally relevant traits.