The Asymmetry Of Facial Expression Information Up And Down

The covered and uncovered pictures of Japanese and Caucasian Facial Expressions of Emotion (JACFEE) was used to explore the difference of recognition of facial expressions, asymmetry of emotional information in upper and lower facial expression and the characteristics of eye movement of facial expression recognition. This study used the matching task namely forced choice label task, including three experiments. Subjects were presented with pictures in a randomized order. For each picture, the subjects were asked to categorize facial expressions. The first experiment and third experiment used the Japanese and Caucasian Facial Expressions of Emotion (JACFEE), and The second experiment used the lower faces and upper faces were covered respectively at the end of the center line from the hairline to the chin. The following conclusions are induced:The first experiment examined differences in recognition of various facial expressions by analyzing recognition scores of facial expression. Results indicated that there were different in recognition of different emotional facial expressions significantly, namely the happy facial expression were easy to distinguish than other facial expressions.The second experiment investigated asymmetry of emotional information in upper and lower facial expression by analyzing recognition scores of upper and lower facial expression. Results indicated that location of facial expression was associated with recognition of different emotions. The recognition of sadness and surprise were more dependent on the upper area of facial expression. The recognition of contempt, disgust and happiness were more dependent on the lower area of facial expression. The location of the facial expression was not associated with recognition of anger and fear.The third experiment investigated the characteristics of eye movement of facial expression recognition by analyzing eye movement data with SPSS 11.5 and Data Viewer. Results indicated that the characteristics of eye movement of various facial expressions were different. The happy face was accompanied by shorter fixations compared with other facial expressions. (2) subjects fixated the upper face in sadness,surprise and disgust. They redistributed fixations to the lower face when recognized happiness and contempt, and the upper and lower face of anger and fear attracted similar number of fixations.