SEP
Also written as: SEP — somatosensory evoked potential
A neurophysiological test measuring electrical activity in the brain in response to touch or vibration stimuli.
Full Definition
Somatosensory evoked potentials are electrical responses recorded from the nervous system following stimulation of peripheral sensory nerves. The test evaluates the integrity of sensory pathways from the peripheral nerve to the brain cortex. SEPs are commonly used to assess spinal cord function during surgery and to diagnose neurological conditions affecting sensory pathways. The responses are typically recorded from electrodes placed over the scalp, cervical spine, and peripheral nerves.
Usage
Usage note: Always capitalize when used as an acronym; may be written in full form in patient-facing materials.
In Context
- "The SEP study revealed prolonged central conduction times consistent with demyelinating disease." — Neurophysiology report
- "Intraoperative SEP monitoring was maintained throughout the spinal fusion procedure." — Surgical monitoring documentation