Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

Cardiovascular changes associated with spontaneous and evoked K-complexes.

P Monstad1, C Guilleminault

  • 1Stanford University Sleep Disorders Centers, CA 94305, USA.

Neuroscience Letters
|April 23, 1999
PubMed
Summary

Blood pressure drops during sleep increase the likelihood of K-complexes, which may help regulate blood pressure during NREM sleep. This study links blood pressure fluctuations to K-complex activity.

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Visual and automatic classification of the cyclic alternating pattern in electroencephalography during sleep.

Brazilian journal of medical and biological research = Revista brasileira de pesquisas medicas e biologicas·2019
Same author

Ankyloglossia as a risk factor for maxillary hypoplasia and soft palate elongation: A functional - morphological study.

Orthodontics & craniofacial research·2017
Same author

Medical comorbidity in narcolepsy: findings from the Burden of Narcolepsy Disease (BOND) study.

Sleep medicine·2017
Same author

Continuous positive airway pressure therapy in obstuctive sleep apnea: benefits and alternatives.

Expert review of respiratory medicine·2017
Same author

[Historical review on obstructive sleep apnea in children].

Archives de pediatrie : organe officiel de la Societe francaise de pediatrie·2016
Same author

Nasopharyngeal airway stenting devices for obstructive sleep apnoea: a systematic review and meta-analysis.

The Journal of laryngology and otology·2014

Area of Science:

  • Neuroscience
  • Sleep Science
  • Cardiovascular Physiology

Background:

  • K-complexes (KCs) are EEG events during NREM sleep.
  • Blood pressure exhibits oscillations, such as Mayer waves, during sleep.

Purpose of the Study:

  • To investigate the relationship between blood pressure (BP) dynamics and K-complexes (KCs) during stage 2 NREM sleep.
  • To determine if BP changes influence spontaneous and evoked KCs.
  • To explore the potential role of KCs in blood pressure regulation during sleep.

Main Methods:

  • Intraarterial BP monitoring and polysomnography were used in 8 healthy volunteers.
  • Analysis focused on spontaneous KCs and sound-evoked KCs in relation to BP fluctuations.
  • Mayer wave oscillations (16-30s period) were observed in all subjects.

Related Experiment Videos

Main Results:

  • Spontaneous KCs predominantly occurred during blood pressure drops.
  • Sound stimuli were more likely to evoke KCs when presented during a BP decline.
  • K-complexes, both spontaneous and evoked, were preceded by a significant drop in systolic BP and induced a subsequent rise in BP.

Conclusions:

  • Falling blood pressure during stage 2 NREM sleep enhances the probability of evoking KCs with external stimuli.
  • Spontaneous KCs may occur more frequently during periods of falling blood pressure.
  • K-complexes might play a role in modulating blood pressure during NREM sleep.