title: DEFINING BIOLOGICAL FEEDBACK CONTROL SYSTEMS.
mesh_terms: D005133:Eye Movements; D005246:Feedback; D006801:Humans; D008027:Light; D009048:Motor Skills; D009424:Nervous System Physiological Phenomena; D010827:Physiology; D011680:Pupil; D012018:Reflex
keywords: EYE MOVEMENTS; FEEDBACK; LIGHT; MOTOR SKILLS; PHYSIOLOGY; PUPIL; REFLEX