Motor Disturbance
Motor disturbance is characterized by repetitive movements, grimacing, hyperactivity, rigid posture, or other evidences of motor behavior disruption. The possible causes of motor disturbances include stroke, leprosy, vitamin B12 deficiency, insomnia, iron deficiency, ADHD, catatonia, schizophrenia, and iron deficiency. For instance, a patient with schizophrenia has been blankly staring at the wall while standing on one foot. He has already been in that same position for 5 hours.