Wearing N95, Surgical and Cloth Face Masks Compromises the Communication of Emotion

Abstract According to the familiar axiom, the eyes are the window to the soul. However, wearing masks to prevent the spread of COVID-19 involves occluding a large portion of the face. Do the eyes carry all of the information we need to perceive each other’s emotions? We addressed this question in two studies. In the first, 162 Amazon Mechanical Turk (MTurk) workers saw videos of human faces displaying expressions of happiness, disgust, anger, and surprise that were fully visible or covered by N95, surgical, or cloth masks and rated the extent to which the expressions conveyed each of the four emotions. Across mask conditions, participants perceived significantly lower levels of the expressed (target) emotion and this was particularly true for expressions composed of greater facial action in the lower part of the faces. Furthermore, higher levels of other (non-target) emotions were perceived in masked compared to visible faces. In the second study, 60 MTurk workers rated the extent to which three types of smiles (reward, affiliation, and dominance smiles), either visible or masked, conveyed positive feelings, reassurance, and superiority. They reported that masked smiles communicated less of the target signal than visible faces, but not more of other possible signals. Political attitudes were not systematically associated with disruptions in the processing of facial expression caused by masking the face.