Neurodiagnostics Glossary
100 terms total — 11 showing — Last updated 15 Sep 2026
masseter reflex
An electrophysiological test of trigeminal nerve function by stimulating the mental nerve.
central sleep apnea index
A quantitative measure expressing the number of central apnea events per hour of sleep, used to assess the severity of c...
electroencephalogram
A diagnostic test that records electrical activity in the brain using electrodes placed on the scalp.
epileptiform discharge
Abnormal electrical brain activity resembling epileptic patterns but not necessarily associated with clinical seizures.
magnetoencephalography
Non-invasive neuroimaging technique that measures magnetic fields produced by electrical activity in the brain.
repetitive discharges
Stereotyped EEG patterns that repeat at regular intervals, often indicating seizure activity or cortical irritability.
repetitive nerve stimulation
A technique testing neuromuscular junction function by delivering repeated electrical stimuli.
sleep architecture analysis
A comprehensive evaluation of sleep stage patterns, transitions, and timing derived from polysomnographic recordings to...
sleep efficiency
A polysomnographic parameter calculated as the percentage of total sleep time relative to the total time spent in bed du...
sleep onset REM period
An abnormal sleep pattern where REM sleep occurs within 15 minutes of sleep onset, often indicative of narcolepsy or oth...
sleep spindles
Burst of 11-15 Hz activity during stage 2 sleep, generated by thalamic pacemaker cells.
temporal lobe epilepsy
The most common form of focal epilepsy, originating from temporal lobe structures and often associated with hippocampal...