测量面部模仿:Affdex与EMG对比
Jan-Frederik Westermann1, Ralf Schäfer1, Marc Nordmann1
1Medical Faculty, Clinical Institute for Psychosomatic Medicine and Psychotherapy, University Hospital of the Heinrich-Heine-University, Düsseldorf, Germany.
PloS one
|January 2, 2024
概括
面部模仿,即自动模仿他人的表情,可以通过像Affdex这样的自动软件来测量,但电肌图 (EMG) 仍然优越于微妙的模仿研究.
科学领域:
- 心理学 心理学 心理学
- 神经科学是一个神经科学.
- 人与计算机的交互
背景情况:
- 面部模仿对于社交互动和情感理解至关重要.
- 电肌图 (EMG) 是衡量面部模仿的既定方法.
- 自动化面部表情分析软件对于模仿研究的适用性尚未得到充分证实.
研究的目的:
- 为了比较自动化面部编码软件 Affdex 与用于测量面部模仿的电肌学 (EMG).
- 评估Affdex检测模仿对快乐和愤怒刺激的反应的能力.
- 为了确定Affdex与EMG相比的时间准确性.
主要方法:
- 在33名参与者中,使用视频刺激 (快乐,愤怒) 诱导面部模仿.
- 同时使用面部EMG (corrugator supercilii,zygomaticus major) 和Affdex软件进行测量.
- 分析了EMG和Affdex数据之间的相关性,以发现快乐和愤怒的表达.
主要成果:
- 阿夫德克斯检测到快乐模仿 (唇角拉拉器,快乐影响) 与EMG (主要zygomaticus) 有显著的相关性,但延迟800毫秒.
- 电磁共振显示快速的肌肉主要激活~400ms后的快乐刺激.
- 阿夫德克斯没有检测到与EMG (corrugator supercilii) 相对应的愤怒模仿 (眉毛下降,愤怒影响).
结论:
- 像Affdex这样的自动化软件可以测量积极情绪 (快乐) 的模仿,但有显著的时间滞后.
- 电磁共振仍然是精确测量微妙面部模仿的首选方法.
- 需要进一步的研究来改进自动化系统,以捕捉快速,微妙的面部模仿,特别是负面情绪.
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