Emotion perception from dynamic and static body expressions in point-light and full-light displays
Emotion perception from dynamic and static body expressions in point-light and full-light displays
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DOI：
10.1068/p5096
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发表时间：
2004-01-01
期刊：
影响因子：
1.7
通讯作者：
Young, AW
中科院分区：
文献类型：
--
作者：
Atkinson, AP;Dittrich, WH;Young, AW
情绪识别的研究一直由面部表情照片的研究主导。要全面了解情绪知觉及其神经基础，就需要对表情以外的动态表现和表达方式进行研究。我们的目标是：（i）开发一套基本情绪的动态和静态全身表达，用于临床人群的系统调查，并用于功能成像研究;（ii）相对于先前研究的结果，评估这些刺激的强迫选择情绪分类性能;以及（iii）检验更夸张的全身运动会产生（a）更准确的情绪分类和（B）更高的情绪强度等级的假设。10名演员在3个夸张级别上描绘了5种情绪（愤怒，厌恶，恐惧，快乐和悲伤），他们的脸被遮住了。两组相同的150个情感描绘（全光和点光）是从相同的数字镜头创建的，沿着每个情感描绘的“峰值”的相应静态图像。识别任务证实了以前的研究结果，基本的情绪是很容易识别的身体动作，即使静态形式的信息是最小化的使用点光显示器，全光，甚至点光显示器可以传达可识别的情绪，而不是有效地比动态显示。识别的成功不同的个人情绪，证实了早期的结果的重要性，区分不同的情绪表达的运动特征的差异。错误分类的模式与早期的情绪聚类研究结果一致。身体运动的夸张（a）增强了识别准确性，特别是对于动态点光显示，但特别是不是悲伤，和（B）产生更高的情感强度评级，无论照明条件下，电影，但在较小程度上静止，表明身体姿态的强度判断更多地依赖于运动（或形式从运动）比静态形式信息。
Research on emotion recognition has been dominated by studies of photographs of facial expressions. A full understanding of emotion perception and its neural substrate will require investigations that employ dynamic displays and means of expression other than the face. Our aims were: (i) to develop a set of dynamic and static whole-body expressions of basic emotions for systematic investigations of clinical populations, and for use in functional-imaging studies; (ii) to assess forced-choice emotion-classification performance with these stimuli relative to the results of previous studies; and (iii) to test the hypotheses that more exaggerated whole-body movements would produce (a) more accurate emotion classification and (b) higher ratings of emotional intensity. Ten actors portrayed 5 emotions (anger, disgust, fear, happiness, and sadness) at 3 levels of exaggeration, with their faces covered. Two identical sets of 150 emotion portrayals (full-light and point-light) were created from the same digital footage, along with corresponding static images of the 'peak' of each emotion portrayal. Recognition tasks confirmed previous Findings that basic emotions are readily identifiable from body movements, even when static form information is minimised by use of point-light displays, and that full-light and even point-light displays can convey identifiable emotions, though rather less efficiently than dynamic displays. Recognition success differed for individual emotions, corroborating earlier results about the importance of distinguishing differences in movement characteristics for different emotional expressions. The patterns of misclassifications were in keeping with earlier Findings on emotional clustering. Exaggeration of body movement (a) enhanced recognition accuracy, especially for the dynamic point-light displays, but notably not for sadness, and (b) produced higher emotional-intensity ratings, regardless of lighting condition, for movies but to a lesser extent for stills, indicating that intensity judgments of body gestures rely more on movement (or form-from-movement) than static form information.