Brain–Computer Interface–Based Communication in the Completely Locked-In State
Communication is the process of expressing and sharing feelings, thoughts, and intentions with one another by verbal and various nonverbal means. Communication skills appear automatic but can pose severe challenges to individuals suffering from motor neuron disorders. The most devastating of motor neuron diseases is amyotrophic lateral sclerosis (ALS) [1], which is progressive and renders an individual motionless, severely affecting his or her communication ability [2].