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Substantial Electrodermal activity, or galvanic skin response, is a measure of autonomic changes in the electrical properties of the skin. It has been used in the research on stress, anxiety levels, and emotional arousal. Studies shown that the link between EDA and different cognitive states can indeed be used to measure them. The article concludes with describing the benefits of 'power napping' and the scientific backing research about it.<ref>https://sleepman.com/sciencedevelopment/#science</ref>
related research
Avantechs supports Sleepman with a body of evidence on the benefits of sleep and averse effects induced by the lack of thereof. The official website describes these discusses these effects and describes how the device may help. The different phases of sleep are especially discussed.
Second part of the article about science behind Sleepman discusses the viability of electrodermal activity measurement (EDA) sensing for measuring quality of sleep and why the company decided to use it over electroencephalography. Sleepman uses electrodermal activity EDA sensors because Avantechs deemed electroencephalography to be too unwieldy and uncomfortable for nightly and daily use.
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