It is gaining popularity in diverse neuroergonomic applications including psychiatry, neurology, operator and consumer assessment, as well as virtual reality and gaming 4. galvanic skin response (GSR), has been widely used as a quantitative index of mental stress accessible through noninvasive means 1– 3. A newly developed EDA event selection policy leveraging unbiased selection of phasic events validated our GET EDA sensor against gold standards.įor decades, electrodermal activity (EDA), a.k.a. The combination of HSPR and a soft interlayer between the GET and an EDA wristband enabled ambulatory EDA monitoring on the palm in free-living conditions. heterogeneous straight ribbons (HSTR) has been discovered and understood. A fifty-fold strain reduction in HSPR vs. To minimize the well-known strain concentration at their interfaces, we propose heterogeneous serpentine ribbons (HSPR), which refer to a GET serpentine partially overlapping with a gold serpentine without added adhesive. However, robust electrical connection between ultrathin devices and rigid circuit boards is a long missing component for ambulatory use. Our previous invention of sub-micron-thin imperceptible graphene e-tattoos (GET) is ideal for unobstructive EDA sensing on the palm. State-of-the-art EDA sensors suffer from obstructiveness on the palm or low signal fidelity off the palm. Electrodermal activity (EDA) is a popular index of mental stress.
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