Lo L Y, Li W O, Lee L P, Yeung P S
Hong Kong Shue Yan University, Hong Kong, People's Republic of China.
The University of Hong Kong, Hong Kong, People's Republic of China.
Cogn Process. 2018 Nov;19(4):505-515. doi: 10.1007/s10339-018-0868-3. Epub 2018 May 17.
Emotion can be conceptualized by the dimensional account of emotion with the dimensions of valence and arousal. There is little discussion of the difference in discriminability across the dimensions. The present study hypothesized that any pair of emotional expressions differing in the polarity of both valence and arousal dimensions would be easier to distinguish than a pair differing in only one dimension. The results indicate that the difference in the dimensions did not affect participants' reaction time. Most pairs of emotional expressions, except those involving fear, were similarly discriminative. Reaction times to pairs with a fearful expression were faster than to those without. The fast reaction time to fearful facial expressions underscores the survival value of emotions.
情绪可以通过情绪的维度理论来概念化，该理论包含效价和唤醒两个维度。关于各维度间可辨别性的差异，讨论甚少。本研究假设，与仅在一个维度上存在差异的一对情绪表达相比，在效价和唤醒维度上极性均不同的任何一对情绪表达会更容易区分。结果表明，维度差异并未影响参与者的反应时间。除了涉及恐惧的那些情绪表达外，大多数情绪表达对在辨别性上并无差异。对带有恐惧表情的情绪表达对的反应时间比对不带恐惧表情的反应时间更快。对恐惧面部表情的快速反应时间凸显了情绪的生存价值。
