The effect of facial motion on recognition of facail expression-Analysis of eye movements-

最近的研究表明，面部动作在识别面部表情中起着重要作用。然而，目前尚不清楚面部运动如何影响面部识别的认知策略。目前的研究主要集中在识别面部表情时的注视点。在实验1中，动态呈现的人脸识别准确率高于静态呈现的人脸识别准确率，且在观察动态人脸时，眼球的运动范围较窄。在倒立人脸的实验2中，动态呈现与静态呈现在注视精度和注视方差上的差异较小。这些结果表明，随着准确率的提高，方差的减小是直立面部特有的，并且与面部结构信息的识别密切相关。我们的研究结果表明，面部运动改变了对面部表情的识别策略，面部运动的影响是基于对面部表情的识别，而不是对物体的识别。

Recent studies show facial motion plays an important role in recognition of facial expressions. It is unclear, however, how facial motion influence cognitive strategy of facial recognition. The current research focuses on observer's fixation points during recognizing facial expressions. In experiment 1 with upright faces, recognition was more accurate in dynamic presentation of faces than in static presentation, and eyes moved in narrow area during observing the dynamic faces. In experiment 2 with inverted faces, the difference between dynamic and static presentation was small in both accuracy and variance of fixation. These results suggest that reduction of variance with increase of accuracy is specific to upright face, and it has close relation to recognition of configural information of face. Our findings imply that facial motion varies strategy for recognition of facial expression, and that the effect of facial motion is based on recognition of facial expression, not object recognition.