A Wearable Brain-Computer Interface System based on Flexible and Air-Permeable Electronic Skin

In this paper, a wearable brain-computer interface system based on flexible and air-permeable electronic skin is implemented. Wearable brain-computer interfaces need to be expanded into more aspects of daily life. Research in these areas requires devices that are closer to life. The flexible electronic skin has the advantages of high permeability (1.904 kg $\cdot \mathrm{m}^{-2} \cdot$ day $^{-1}$ at body temperature) and low skin contact impedance ($4.683 \mathrm{k} \Omega$ at 1 kHz), and can be used to expand the research of single lead brain computer interface in the field of appetite. Because the orbitofrontal cortex plays an important role in food decisions, the device placed electrodes on the forehead to collect electrical signals from people when they were presented with images of different delicacies. Watching their brain activity as they made judgments about their food choices. Found that it was possible to distinguish between delicious pictures and boring ones. To look at the brain’ s attraction and rejection decisions when faced with food cues.