Dimberg U
Department of Psychology, Uppsala University, Sweden.
Biol Psychol. 1990 Oct;31(2):137-47. doi: 10.1016/0301-0511(90)90013-m.
This study explored whether high- and low-intensity auditory stimuli evoke different facial electromyographic reactions and autonomic responses. Subjects were repeatedly exposed to 95-dB and 75-dB tones (1000 Hz, 40 ms rise and fall times) while their facial electromyograms from the corrugator and zygomatic muscle regions, heart rate, skin conductance responses, skin conductance half recovery time and ratings were measured. The 95-dB tone evoked a "negative" reaction with increased corrugator activity and an autonomic response pattern that carried aspects of a defense reaction, that is, slowly habituating skin conductance responses with retarded recovery rate and an initial tendency to heart rate acceleration. Furthermore, the 95-dB tone was rated as unpleasant. The 75-dB tone elicited an orienting response indicated by a distinct heart rate deceleration and fast habituating skin conductance responses with a relatively short recovery time. Thus, the present study demonstrated that the facial electromyographic technique is sensitive to simple environmental stimuli such as auditory stimuli and that the facial response is consistent with the autonomic response patterns and the experience of the stimuli.
本研究探讨了高强度和低强度听觉刺激是否会引发不同的面部肌电图反应和自主反应。研究对象反复暴露于95分贝和75分贝的纯音（1000赫兹，上升和下降时间均为40毫秒）中，同时测量其皱眉肌和颧肌区域的面部肌电图、心率、皮肤电反应、皮肤电半恢复时间以及主观评分。95分贝的纯音引发了一种“负面”反应，表现为皱眉肌活动增加以及一种带有防御反应特征的自主反应模式，即皮肤电反应缓慢习惯化且恢复速率延迟，同时最初有心率加速的趋势。此外，95分贝的纯音被评为令人不快。75分贝的纯音引发了一种定向反应，表现为明显的心率减速以及快速习惯化的皮肤电反应且恢复时间相对较短。因此，本研究表明面部肌电图技术对诸如听觉刺激等简单环境刺激敏感，并且面部反应与自主反应模式以及刺激体验一致。
