Described are methods, devices, and systems for a novel, inexpensive, easy to use therapy for treatment of
coma, post-traumatic stress disorder, Parkinson's
disease, cognitive performance, and / or amblyopia. Described are methods and devices to treat
coma, post-traumatic stress disorder, Parkinson's
disease, cognitive performance, and / or amblyopia that involves no medication. Methods and devices described herein use alternating magnetic fields to gently “tune” the brain and affect symptoms of
coma, post-traumatic stress disorder, Parkinson's
disease, cognitive performance, and / or amblyopia.