Doctoral School of Psychology, Eötvös Loránd University, Budapest, Hungary.
Institute of Psychology, Eötvös Loránd University, 46 Izabella Street, Budapest, Hungary.
Appl Psychophysiol Biofeedback. 2018 Sep;43(3):203-210. doi: 10.1007/s10484-018-9398-0.
Traditionally, electrodermal research measurements were taken from the non-dominant hand. This was considered a valid measurement of arousal for the whole body. Some, however argue for a complex and asynchronous electrodermal system in terms of lateral and dermatome differences in emotional responding. The present study measured skin conductance responses to emotionally laden musical stimuli from the left and right index and middle fingers, as well as the left and right plantar surface of right handed participants (N = 39). The 7-s musical segments conveyed four emotional categories: fear, sadness, happiness and peacefulness. Our results suggest, that the electrodermal system responds to emotional musical stimuli in a lateralized manner on the palmar surfaces. Fear, sadness and peacefulness prompted right hand dominance while happiness elicited left hand dominant response. Lateralization of the palmar and plantar surfaces differed significantly. Moreover, an association between lateralization of the electrodermal system in response to fear and state anxiety was found. Results of the present study suggest that the electrodermal system displays lateral preferences, reacting with varying degree of intensity to different emotions. Apart from lateral differences, music induced emotions show dermatome differences as well. These findings fit well with Multiple Arousal Theory, and prompt for revaluating the notion of uniform electrodermal arousal.
传统上，皮肤电研究测量是从非优势手进行的。这被认为是对整个身体唤醒的有效测量。然而，一些人认为，从左右食指和中指以及右手的左右足底表面测量对情绪有负荷的音乐刺激的皮肤电导反应，存在着复杂的、非同步的皮肤电系统，在情绪反应方面存在侧部和皮节差异。本研究（N=39）测量了对情绪性音乐刺激的皮肤电导反应。这些音乐片段时长 7 秒，传达了四种情感类别：恐惧、悲伤、快乐和宁静。我们的研究结果表明，皮肤电系统在手的掌侧表面以侧化的方式对情绪性音乐刺激做出反应。恐惧、悲伤和宁静引发右手优势，而快乐则引发左手优势反应。掌侧和足底表面的侧化差异显著。此外，还发现了皮肤电系统对恐惧反应的侧化与状态焦虑之间存在关联。本研究的结果表明，皮肤电系统表现出侧化偏好，对不同的情绪反应具有不同程度的强度。除了侧部差异外，音乐引起的情绪也存在皮节差异。这些发现与多重唤醒理论相符，并促使人们重新评估统一的皮肤电唤醒概念。
