Regional scalp EEG slow-wave synchronization during sleep cyclic alternating pattern A1 subtypes

Raffaele Ferri, Francesco Rundo, Oliviero Bruni, Mario G. Terzano, Cornelis J. Stam

Research output: Contribution to journalArticle

Abstract

The levels of EEG synchronization, in the 0.25-2.5 Hz band, during the A1 subtypes of the sleep "cyclic alternating pattern" (CAP) were measured in five healthy subjects by means of the synchronization likelihood (SL) algorithm. SL was measured for seven electrode pairs (F4-F3, C4-C3, P4-P3 for the analysis of interhemispheric SL and F4-C4, C4-P4, F3-C3, and C3-P3, for the analysis of intrahemispheric SL). During the A1 CAP subtypes, SL tended to be highest between pairs of electrodes situated over different hemispheres; in particular, SL obtained from F4-F3 was the highest, followed by that of P4-P3. These results indicate that the transient high level of synchronization in the slow-wave EEG range, during the sleep A1 CAP subtypes, is a phenomenon involving mostly the anterior parts of the brain and is probably based on interhemispheric interactions, possibly mediated by transcallosal connections.

Original languageEnglish
Pages (from-to)352-357
Number of pages6
JournalNeuroscience Letters
Volume404
Issue number3
DOIs
Publication statusPublished - Sep 1 2006

Keywords

  • Cyclic alternating pattern
  • Detrended fluctuation analysis
  • EEG
  • Human
  • Sleep
  • Slow oscillation
  • Slow-wave activity
  • Synchronization likelihood

ASJC Scopus subject areas

  • Neuroscience(all)

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