title: A simplified mercury switch head-control biofeedback device.
abstract: A simplified mercury switch head-control device is reported. It is easily duplicated and amenable to quantitation. Advantages include simplicity and easy use at home, in school, or during therapy. Directionality of the feedback signal and visual feedback do not seem necessary to produce benefit. The results in six patients and two controls are consistent with other studies. This is the second study using mercury switches for feedback.
mesh_terms: D000293:Adolescent; D001676:Biofeedback, Psychology; D002547:Cerebral Palsy / Q000628:therapy*; D002648:Child; D004582:Electronics, Medical / Q000295:instrumentation*; D006257:Head; D006801:Humans; D009043:Motor Activity; D011603:Psychophysiology / Q000295:instrumentation