Electrical communication between procedure

Electroencephalography (EEG) is a procedure to measure electrical activities by electrodes on scalp. EEG signals analysis have mainly involved with Brain -computer interface (BCI) technology which is a direct technological interface between a brain and a computer not requiring any motor output from the user. BCIs detect electrical activity in the brain indirectly and noninvasively through the scalp via EEG. It provides users with communication channels that do not depend on peripheral nerves and muscles [1] and can provide communication and control to people who are totally paralyzed (e.g., amyotrophic lateral sclerosis (ALS) or brainstem stroke) or have other severe motor disabilities [2] [3]. 

---