An apparatus for preventing self-injurious behavior in patients is disclosed. The apparatus generally contains one or more sensor modules, which detect self-injurious blows, and a separate stimulation module, which produces an aversive electric stimulation. The sensor module and stimulation module are...http://www.google.co.uk/patents/US4440160?utm_source=gb-gplus-sharePatent US4440160 - Self-injurious behavior inhibiting system
