Figure 3.

Wearable EEG detection device and application. (A) Neurons generate extracellular voltages, and the electrodes detect the sum of nearby positively and negatively charged areas. To amplify brain waves, gel or dry electrodes are essential [23]. (B) Wearables collect electrical signals [25]. (C) The data are collected and computed [24]. (D) Wearables can be used in various applications [26]. (E) The analyzed data could be used in research on depression, Alzheimer’s disease, epilepsy, schizophrenia, language development, cognitive processes, memory, attention, personality, stroke, insomnia, mood improvement, and muscle performance.