面部反馈在微表情识别中的作用

发布时间：2018-03-22 14:34

本文选题：面部反馈　切入点：微表情　出处：《湖南师范大学》2014年硕士论文　论文类型：学位论文

【摘要】：在现实生活中,人们为了达到自己的目的往往会需要实施欺骗,这就需要人们对自身真实的情感和感受进行压抑和隐藏。然而,这些被压抑和隐藏的真实感受有时会以一种非常快速的面部表情的形式被表达出来,这种表情被称之为微表情。由于表达了人的真实意图,微表情成为了检测谎言和危险意图的有力行为线索。然而,微表情的表达速度很快,人很难准确识别微表情。已有的研究表明在普通表情识别过程中面部反馈信息是进行表情识别一种有效的内在线索。作为人类面部表情的一种特殊形式,研究者目前并不了解面部反馈在微表情识别过程中的作用。对这一问题的回答,将加深研究者对微表情识别过程的理解,为微表情在临床、司法及反恐等领域的应用提供理论基础。本研究探讨面部反馈在微表情识别中的作用,共包括两个实验。在实验1中,研究者通过增强面部肌肉运动阻抗的方式,研究了增强面部反馈对微表情识别过程的影响。在实验2中,研究者通过抑制嘴部的面部肌肉运动的方式,研究了抑制面部反馈对微表情识别过程的影响。研究结果显示,增强面部反馈能提高被试对悲伤的微表情以及短持续时间条件下(50ms)的快乐的微表情的识别准确率,但不能提高被试对惊讶、愤怒、厌恶和恐惧的微表情的识别准确率。除此之外,研究结果还表明,抑制面部反馈降低了被试对惊讶的微表情以及中等持续时间条件下(150ms)的厌恶的微表情的识别准确率,但不影响对悲伤、愤怒、恐惧、快乐的微表情的识别准确率。这些研究结果部分支持了情绪知觉的仿真模型。这提示,在微表情识别过程中,人会自发地对知觉到的微表情进行模仿,并能利用模仿得到的面部反馈信息来帮助进行微表情识别。这一过程与人类识别普通表情的过程类似,提示微表情与普通表情可能具有相同的识别机制。本研究深化了研究者对微表情识别过程及其机制的研究,为微表情研究在实践领域的应用奠定了理论基础。
[Abstract]:In real life, people often need to cheat in order to achieve their own purpose, which requires people to suppress and hide their true feelings and feelings. These repressed and hidden feelings are sometimes expressed in the form of a very fast facial expression, which is called a microemoji. Microexpressions become powerful behavioral cues for detecting lies and dangerous intentions. However, microexpressions express quickly, It is very difficult for people to recognize microexpressions accurately. Previous studies have shown that facial feedback is an effective internal clue for facial expression recognition, which is a special form of human facial expression. Researchers do not understand the role of facial feedback in the process of microfacial expression recognition. The answer to this question will deepen researchers' understanding of the process of microfacial expression recognition. Judicial and anti-terrorism applications provide a theoretical basis. This study explored the role of facial feedback in microfacial expression recognition, including two experiments. In experiment 1, the researchers enhanced the movement impedance of facial muscles. The effect of enhanced facial feedback on the process of microfacial expression recognition was studied. In experiment 2, the effect of facial feedback inhibition on the process of microfacial expression recognition was studied by inhibiting facial muscle movement in the mouth. The results showed that increased facial feedback increased the recognition accuracy of sad microexpressions and happy microexpressions in a short duration of time, but did not improve the participants' anger and surprise. In addition, the results of the study showed that inhibition of facial feedback reduced the recognition accuracy of subjects for surprised microexpressions and disgust at medium duration (150 Ms). But it does not affect the accuracy of recognition of microexpressions of sadness, anger, fear, happiness. These results partially support the simulation model of emotional perception. This suggests that in the process of microfacial expression recognition, People spontaneously mimic perceived microexpressions, and can use the imitated facial feedback to help them recognize microexpressions. This process is similar to the human process of recognizing ordinary expressions. It suggests that microfacial expression may have the same recognition mechanism as ordinary expression. This study deepens the research on the process and mechanism of microfacial expression recognition, and lays a theoretical foundation for the application of microfacial expression research in the field of practice.
【学位授予单位】：湖南师范大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：B842

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