Annotations:

BETS: benign epileptiform transients of sleep

aka SSS: small sharp spikes



Montage: unspecified
FOR A LARGER IMAGE:

appearance

  • occur in stage 1 or 2 NREM sleep.
  • usually monophasic, occasionally diphasic.
  • temporal with broad field of distribution
  • There is typically no disturbance of the background, although there is sometimes a single aftergoing slow wave.
  • typically less than 50 mV, less than 50 msec


clinical significance

normal variant