RMTD (rhythmic midtemporal theta burst of drowsiness)

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RMTD (rhythmic midtemporal theta burst of drowsiness)

Synonymes: Rhythmic midtemporal discharges, RTTD, psychomotor variant pattern

  • Trains of rhythmic theta waves 5-7Hz
  • Duration 5-10sec
  • Located in midtemporal region
  • Often unilateral
  • May be bisynchronous, with shifting asymmetry between sides
  • Present in relaxed wakefulness and drowsiness
  • Adolescents and adults


  • Does not change in frequency or form, in contrast to an epileptic discharge.
  • Not associated with epilepsy



RMTD: Rhythmic theta waves right temporal (average)

RMTD right temporal (average).png