Masking the truth: the impact of face masks on deception detection.

Because of the pandemic, face masks have become ubiquitous in social interactions, but it remains unclear how face masks influence the ability to discriminate between truthful and deceptive statements. The current study manipulated the presence of face masks, statement veracity, statement valence (positive or negative), and whether the statements had been practiced or not. Despite participants' expectations, face masks generally did not impair detection accuracy. However, participants were more accurate when judging negatively valenced statements when the speaker was not wearing a face mask. Participants were also more likely to believe positively rather than negatively valenced statements.