Skin Admittance Measurement for Emotion Recognition: A Study over Frequency Sweep
Skin Admittance Measurement for Emotion Recognition: A Study over Frequency Sweep
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DOI：
10.3390/electronics5030046
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发表时间：
2016-09-01
期刊：
影响因子：
2.9
通讯作者：
Scilingo, Enzo Pasquale
中科院分区：
文献类型：
--
作者：
Greco, Alberto;Lanata, Antonio;Scilingo, Enzo Pasquale
皮肤电活动（EDA）是监测交感神经系统的可靠生理信号。一些研究表明，EDA可以成为评估人类情绪状态的有效标记物的来源。测量EDA的方法主要有两种：内源性（内部电源）和外源性（外部电源）。尽管外泌方法是最广泛使用的，交流（AC）和直流（DC）方法之间的差异及其在情绪评估领域的含义尚未得到深入研究。本文旨在研究EDA的导纳贡献，研究在不同的频率源，影响EDA统计功率推断的主题的唤起水平（中性或引起）。在这种程度上，40名健康受试者进行视觉情感的启发，包括中性和唤起水平，而EDA是通过DC和AC源从0到1 kHz收集。结果关注的自动，EDA功能为基础的唤醒识别系统的准确性为每个频率源。我们展示了外部电源的频率如何影响唤醒识别的准确性。这表明皮肤电阻率在通过皮肤电反应研究情感刺激中的作用。
The electrodermal activity (EDA) is a reliable physiological signal for monitoring the sympathetic nervous system. Several studies have demonstrated that EDA can be a source of effective markers for the assessment of emotional states in humans. There are two main methods for measuring EDA: endosomatic (internal electrical source) and exosomatic (external electrical source). Even though the exosomatic approach is the most widely used, differences between alternating current (AC) and direct current (DC) methods and their implication in the emotional assessment field have not yet been deeply investigated. This paper aims at investigating how the admittance contribution of EDA, studied at different frequency sources, affects the EDA statistical power in inferring on the subject's arousing level (neutral or aroused). To this extent, 40 healthy subjects underwent visual affective elicitations, including neutral and arousing levels, while EDA was gathered through DC and AC sources from 0 to 1 kHz. Results concern the accuracy of an automatic, EDA feature-based arousal recognition system for each frequency source. We show how the frequency of the external electrical source affects the accuracy of arousal recognition. This suggests a role of skin susceptance in the study of affective stimuli through electrodermal response.