John W. Dougherty, III, D.O., David Neubauer, M.D.
Parasomnias is a topic covered in the Johns Hopkins Psychiatry Guide.

To view the entire topic, please or purchase a subscription.

Official website of the Johns Hopkins Antibiotic (ABX), HIV, Diabetes, and Psychiatry Guides, powered by Unbound Medicine. Johns Hopkins Guide App for iOS, iPhone, iPad, and Android included. Explore these free sample topics:

Johns Hopkins Guides

-- The first section of this topic is shown below --


  • Parasomnias are defined as disorders that involve undesirable motor, verbal, or experiential phenomena that occur during sleep or with sleep onset/arousals[1].
  • Parasomnias occur due to abnormal transitions from non-rapid eye movement (NREM), rapid eye movement (REM), and wakefulness[2].
    • Often with periods of dissociation or overlap among these
  • Parasomnias are divided into NREM sleep disorders, REM sleep disorders, and "other parasomnias".
    • NREM sleep disorders include: conusional arousals, sleepwalking, and sleep terrors
    • REM sleep disorders include: nightmare disorder, REM sleep behavior disorder, and isolated sleep paralysis.
    • Other parasomnias include: exploding head syndrome, sleep enuresis, sleep-related groaning (catathrenia), sleep-related hallucinations, and sleep-related eating syndrome.
  • Parasomnias are classified under the Sleep-Wake Disorders section of the Diagnostic and Statistical Manual of Mental Disorders, 5th Edition (DSM-5)[3]

-- To view the remaining sections of this topic, please or purchase a subscription --

Last updated: October 15, 2014