State-dependent responsiveness of cardiovascular system during sleep and wakefulness

Masakatsu Sawada, Mitsuyuki Nakao, Mitsuaki Yamamoto, Masanori Munakata, Yutaka Imai, Keishi Abe

Research output: Contribution to journalConference articlepeer-review

2 Citations (Scopus)

Abstract

We have geometrically investigated the relationship among the state-dependent cardiovascular dynamics during physiological states such as sleep and wakefulness. Here, an impulse response analysis is carried out in order to anatomize our geometrical results in a temporal domain. As a result, the autonomic regulation is suggested to be firmly functioning during slow wave sleep, while weakened or slightly unstabilized during rapid eye movement sleep. During wakefulness, although the state-dependent characteristics of impulse responses varied from subject to subject, the tendency held within a subject. These results are suggested to provide a microscopic interpretation for the geometrically obtained state-dependency of cardiovascular dynamics during sleep and wakefulness.

Original languageEnglish
Pages (from-to)1800-1801
Number of pages2
JournalAnnual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings
Volume5
Publication statusPublished - 1996
EventProceedings of the 1996 18th Annual International Conference of the IEEE Engineering in Medicine and Biology Society. Part 4 (of 5) - Amsterdam, Neth
Duration: 1996 Oct 311996 Nov 3

ASJC Scopus subject areas

  • Signal Processing
  • Biomedical Engineering
  • Computer Vision and Pattern Recognition
  • Health Informatics

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