Twin Studies on Parasomnias

  • Ariyuki Hori


The parasomnias are classified as disorders of arousal, partial arousal, and sleep stage transition. Many of these parasomnias manifest dramatic symptoms causing an activation of central nervous system. Most parasomnias appear early in childhood. Some parasomnias, for example REM sleep behavior disorders (RBD) and sleep-related penile problems are seen in adult and aged people (Figure 1). Usually, these patients have predisposing factors including neurologic disorders and aging (Figure 2). Despite these explosive features, most of children with these parasomnias show spontaneous remission at the time of puberty.


Twin Pair Twin Study Nocturnal Enuresis Sleep Paralysis Sleep Terror 
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Copyright information

© Springer Science+Business Media New York 1997

Authors and Affiliations

  • Ariyuki Hori
    • 1
  1. 1.Department of NeurologyKanazawa Medical UniversityIshikawaJapan

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