Short-latency somatosensory evoked potentials to median and peroneal nerve stimulation: studies in normal subjects and patients with neurologic disease.

SSEPs to median nerve stimulation which arise in the brachial plexus, subcortical and cortical structures can be recorded from the scalp. Abnormalities of these potentials have been found in patients with demyelinating disease and focal or diffuse disease of the nervous system. SSEPs to peroneal nerve stimulation which arise in rostral spinal cord, brainstem, and cerebral structures have also been recorded from the scalp. These methods can be expected to provide useful information in patients with certain neurological disorders.