DEVICE: Feedback Box (00817020020426)

An assembly of devices intended to provide visual and/or auditory signals corresponding to the status of one or more of a patient's physiological functions, e.g., brain wave activity, muscle activity, blood pressure, skin temperature, balance, so that the patient can develop some degree of conscious control over a usually involuntarily function. This system will detect changes in the physiological functions that are outside of the normal awareness, amplify these signals, and provide this as feedback to the patient. It is used in, e.g., tension headache control, muscle relaxation, rehabilitation/training, behavioural research.

An assembly of devices designed for recording a localized electrical potential from the brain or spinal cord in response to stimulation (i.e., visual, auditory, and/or somatosensory) of the sensory organs, or of some point along the ascending pathway from the sensory organs, or within the central nervous system. It typically includes a sensory stimulator/stimulation system and a graphic recorder. The characteristics of the recorded potential vary with recording location, stimulus modality and level, and level of consciousness or anaesthesia. The resultant waveform may be used to assess the function and integrity of the brain and its sensory pathways.