Host: The Japanese Society for Cognitive Psychology
People often try to conceal their emotions and present a different expression. However, we can discriminate deceptive faces from genuine faces. We investigated how we use spatial frequency components to understand deceptive faces. In this study, participants were asked to generate deceptive smile, deceptive anger, genuine smile, and genuine anger images by tuning the intensity of a smiling and angry expression. The intensity could be changed from +10 (the most smiling) to -10 (the most anger). The low and high spatial frequency (LSF and HSF) components of the images could also be varied independently. The results demonstrated that a deceptive smile consisted of a neutral expression in LSF and a low intensity smile in HSF. These results suggest that we can understand deceptive smile faces by using the unbalanced intensities of emotional expression between LSF and HSF.
