Torniainen Jari, Cowley Benjamin, Henelius Andreas, Lukander Kristian, Pakarinen Satu
Annu Int Conf IEEE Eng Med Biol Soc. 2015;2015:6433-6. doi: 10.1109/EMBC.2015.7319865.
Electrodermal activity is an indicator of sympathetic activation and a useful tool for investigating psychological and physiological arousal. Novel wearable skin conductivity sensors offer portable low-cost solutions for long-term monitoring. In this article we compare the similarity of signals between a prototype of the wearable Moodmetric EDA Ring and a laboratory-grade skin conductance sensor in a psychophysiological experiment. The similarity of the signals was estimated by calculating the cosine distance between phasic features extracted from decomposed signals. The similarity was on average 83.3% ± 16.4%. The compound error of the decomposition process was also investigated and no systematic bias was observed towards either device. We conclude that the prototype ring is a promising device for ecologically valid field studies.
皮肤电活动是交感神经激活的一个指标，也是用于研究心理和生理唤醒的一种有用工具。新型可穿戴皮肤电导率传感器为长期监测提供了便携且低成本的解决方案。在本文中，我们在一项心理生理学实验中比较了可穿戴的Moodmetric EDA指环原型与实验室级皮肤电导传感器之间信号的相似性。通过计算从分解信号中提取的相位特征之间的余弦距离来估计信号的相似性。相似性平均为83.3%±16.4%。还研究了分解过程的复合误差，未观察到对任何一种设备的系统性偏差。我们得出结论，该原型指环是用于生态有效现场研究的一种有前景的设备。
