Increased periodic arousal fluctuations during non-REM sleep are associated to superior memory

Luigi Ferini-Strambi, Paola Ortelli, Vincenza Castronovo, Stefano Cappa

Research output: Contribution to journalArticle

Abstract

Sleep has been implicated in the plastic cerebral changes that underlie learning and memory. The scientific investigation of people with exceptional memory has been relatively neglected. We report the results of a polysomnographic investigation of an individual with superior memory performance. The sleep structure, in terms of sleep induction and maintenance, as well as non-REM and REM sleep percentages, were normal. The main finding was an increased number of periodic arousal fluctuations during non-REM sleep (measured as cyclic alternating pattern, CAP) during two consecutive nights (7-8 S.D. units above that observed in age-matched controls). Since CAP rate reflects the structural organization of non-REM sleep, this observation supports the hypothesis of a link between non-REM sleep and declarative memory performance.

Original languageEnglish
Pages (from-to)439-442
Number of pages4
JournalBrain Research Bulletin
Volume63
Issue number6
DOIs
Publication statusPublished - Jul 15 2004

Keywords

  • Arousals
  • Cyclic alternating pattern (CAP)
  • Memory
  • Sleep

ASJC Scopus subject areas

  • Neuroscience(all)

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