Spatio-Temporal Properties of Amused, Embarrassed, and Pained Smiles
Spatio-Temporal Properties of Amused, Embarrassed, and Pained Smiles
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DOI：
10.1007/s10919-022-00404-7
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发表时间：
2022-07-01
影响因子：
2.1
通讯作者：
Matsui，Hiroshi
中科院分区：
文献类型：
--
作者：
Namba，Shushi;Sato，Wataru;Matsui，Hiroshi
微笑是一种普遍但又微妙的面部表情，最常用于面对面的交流，通常表示有趣，但有时也传达负面情绪，例如尴尬和痛苦。尽管之前的研究表明这些不同类型的微笑的空间和时间特性可能有所不同，但还没有研究彻底分析这些特性。这项研究旨在利用自发的面部行为数据库来阐明微笑传达有趣、尴尬和痛苦的时空特性。关于空间模式的结果显示，与有趣的微笑相比，痛苦的微笑表现出较少的眼睛收缩和更多的整体面部紧张。尴尬和有趣的微笑之间没有发现空间差异。就时间特性而言，尴尬和痛苦的微笑比有趣的微笑处于更高的面部紧张状态。此外，尴尬的微笑比有趣的微笑表现出从紧张状态到微笑状态的更渐进的转变，并且与有趣的微笑相比，痛苦的微笑保持或过渡到微笑状态的可能性更低。通过比较这三种微笑类型的时空特性，这项研究表明，离散状态之间转换的概率可以帮助区分有趣、尴尬和痛苦的微笑。
Smiles are universal but nuanced facial expressions that are most frequently used in face-to-face communications, typically indicating amusement but sometimes conveying negative emotions such as embarrassment and pain. Although previous studies have suggested that spatial and temporal properties could differ among these various types of smiles, no study has thoroughly analyzed these properties. This study aimed to clarify the spatiotemporal properties of smiles conveying amusement, embarrassment, and pain using a spontaneous facial behavior database. The results regarding spatial patterns revealed that pained smiles showed less eye constriction and more overall facial tension than amused smiles; no spatial differences were identified between embarrassed and amused smiles. Regarding temporal properties, embarrassed and pained smiles remained in a state of higher facial tension than amused smiles. Moreover, embarrassed smiles showed a more gradual change from tension states to the smile state than amused smiles, and pained smiles had lower probabilities of staying in or transitioning to the smile state compared to amused smiles. By comparing the spatiotemporal properties of these three smile types, this study revealed that the probability of transitioning between discrete states could help distinguish amused, embarrassed, and pained smiles.