[Exploding head syndrome].

Exploding head syndrome (EHS) is a paroxysmal sensory parasomnia characterized by the sensation of a loud noise or «explosion in the head» during the wake-sleep/sleep-wake cycle. The most popular explanation for this condition is the decrease of reticular formation activity during the transition between wakefulness and sleep. The authors present a review of literature on the diagnosis and treatment of EHS and clinical observations of patients with classical signs.