Roberts et al. (2004) showed that perceived facial attractiveness of women is higher in the fertile phase of the menstrual cycle than in the luteal phase, suggesting the existence of visible cues of ovulation. However, the nature of such cues remains ...
AbstractDuchenne de Boulogne (1862/1990) observed that authentic smiles are distinguished from posed smiles by contractions of the orbicularis oculi muscle that surrounds the eye. Hager and Ekman (1985) subsequently reported that the “Duchenne smile” is ...
Abstract. In this experiment, we replicated the effect of muscle engagement on perception such that the recognition of another’s facial expressions was biased by the observer’s facial muscular activity (Blaesi ...