Juuse Liina, Tamm Diina, Lõo Kaidi, Allik Jüri, Kreegipuu Kairi
Institute of Psychology, University of Tartu, Tartu, Estonia; Doctoral School of Behavioural, Social and Health Sciences, University of Tartu, Tartu, Estonia; iCv Lab, Institute of Technology, University of Tartu, Tartu, Estonia.
Institute of Psychology, University of Tartu, Tartu, Estonia.
Acta Psychol (Amst). 2024 Nov;251:104573. doi: 10.1016/j.actpsy.2024.104573. Epub 2024 Nov 2.
Skin conductance response (SCR) serves as a dependable marker of sympathetic activation used to measure emotional arousal. This study investigates the impact of presentation modality (face or word) on the degree of emotional discrimination elicited by SCR. Facial expressions or words associated with six basic emotions-anger, happiness, disgust, fear, sadness, and surprise-were studied among 102 participants. The amplitude of SCR was accurately predicted by subjective arousal ratings of these stimuli, but not by valence ratings. The habituation process to emotional and neutral stimuli across six successive presentations was characterized by an exponential decay function, capturing the rate at which SCR response diminishes in relation to the preceding trial of the same stimulus. Through the subtraction of the response to neutral stimuli from the emotion-evoked SCR, it was demonstrated that the initial presentation of each emotion elicits a substantial response, particularly attributable to the emotional content. Notably, the initial emotional response to faces expressing happiness, disgust, and sadness surpassed that of words conveying the same emotions. The results indicate that different emotional responses can be quantified using a simple electrical instrument.
皮肤电传导反应（SCR）是用于测量情绪唤醒的交感神经激活的可靠指标。本研究调查了呈现方式（面部或文字）对SCR引发的情绪辨别程度的影响。在102名参与者中研究了与六种基本情绪——愤怒、快乐、厌恶、恐惧、悲伤和惊讶——相关的面部表情或文字。SCR的幅度可以通过这些刺激的主观唤醒评分准确预测，但不能通过效价评分预测。在连续六次呈现中，对情绪和中性刺激的习惯化过程以指数衰减函数为特征，该函数反映了SCR反应相对于同一刺激的前一次试验减少的速率。通过从情绪诱发的SCR中减去对中性刺激的反应，结果表明，每种情绪的初次呈现都会引发强烈反应，这尤其归因于情绪内容。值得注意的是，对表达快乐、厌恶和悲伤的面部的初始情绪反应超过了传达相同情绪的文字。结果表明，可以使用简单的电子仪器量化不同的情绪反应。
