1999 年 17 巻 2 号 p. 111-115
This study investigated the effects of consistency of facial expression and person of two successively presented faces on face recognition. Twenty-four healthy adult subjects participated in the experiment. They were required to remember a facial expression (smile/neutral) or a person (10 unfamiliar females) of the first stimulus, and to judge whether expression or person of the second face, presented in the left or right visual field, was same as or different from the first. The results showed that reaction times in the expression judgment were shorter for the same person than for different person, irrespective of her expression. In the person judgment, the consistency of expression affected performance only when the same person was presented repeatedly. Reaction times for the same person were longer when her expression was different from the first, compared to when she reappeared with a same expression. No effect of visual field of the second face was found. These results suggest that there are some interdependencies between an analysis of facial expression and that of person information in face recognition processes.