Facial surface electromyography (sEMG) is a powerful tool for objective evaluation of human facial expressions and was accordingly suggested in recent years for a wide range of psychological and neurological assessment applications. Owing to technical challenges, in particular the cumbersome gelled electrodes, the use of facial sEMG was so far limited. Using innovative facial temporary tattoos optimized specifically for facial applications, we demonstrate the use of sEMG as a platform for robust identification of facial muscle activation. In particular, differentiation between diverse facial muscles is demonstrated. We also demonstrate a wireless version of the system. The potential use of the presented technology for user-experience monitoring and objective psychological and neurological evaluations is discussed.
Lilah Inzelberg, Moshe David Pur, Stanislav Steinberg, David Rand, Maroun Farah, and Yael Hanein, "Wireless electronic-tattoo for long-term high fidelity facial muscle recordings," Proc. SPIE 10194, Micro- and Nanotechnology Sensors, Systems, and Applications IX, 101940U (Presented at SPIE Defense + Security: April 10, 2017; Published: 18 May 2017); https://doi.org/10.1117/12.2263522.
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