Zeng Xuemei, Wu Qi, Zhang Siwei, Liu Zheying, Zhou Qing, Zhang Meishan
Cognition and Human Behavior Key Laboratory of Hunan Province, Department of Psychology, Hunan Normal University, Changsha, China.
Front Psychol. 2018 Oct 24;9:2015. doi: 10.3389/fpsyg.2018.02015. eCollection 2018.
Micro-expressions, as fleeting facial expressions, are very important for judging people's true emotions, thus can provide an essential behavioral clue for lie and dangerous demeanor detection. From embodied accounts of cognition, we derived a novel hypothesis that facial feedback from upper and lower facial regions has differential effects on micro-expression recognition. This hypothesis was tested and supported across three studies. Specifically, the results of Study 1 showed that people became better judges of intense micro-expressions with a duration of 450 ms when the facial feedback from upper face was enhanced via a restricting gel. Additional results of Study 2 showed that the recognition accuracy of subtle micro-expressions was significantly impaired under all duration conditions (50, 150, 333, and 450 ms) when facial feedback from lower face was enhanced. In addition, the results of Study 3 also revealed that blocking the facial feedback of lower face, significantly boosted the recognition accuracy of subtle and intense micro-expressions under all duration conditions (150 and 450 ms). Together, these results highlight the role of facial feedback in judging the subtle movements of micro-expressions.
微表情作为转瞬即逝的面部表情,对于判断人们的真实情绪非常重要,因此可为谎言和危险行为检测提供关键的行为线索。基于具身认知理论,我们提出了一个新假设,即面部上半部分和下半部分的面部反馈对微表情识别有不同影响。这一假设在三项研究中得到了验证和支持。具体而言,研究1的结果表明,当通过一种限制凝胶增强来自上半脸的面部反馈时,人们对持续时间为450毫秒的强烈微表情的判断能力会提高。研究2的其他结果表明,当来自下半脸的面部反馈增强时,在所有持续时间条件下(50、150、333和450毫秒),微妙微表情的识别准确率都会显著下降。此外,研究3的结果还显示,阻断下半脸的面部反馈,在所有持续时间条件下(150和450毫秒),显著提高了微妙和强烈微表情的识别准确率。总之,这些结果凸显了面部反馈在判断微表情微妙动作中的作用。