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

Alpha rhythms: noise, dynamics and models

F H Lopes da Silva1, J P Pijn, D Velis

  • 1Graduate School of Neurosciences Amsterdam, University of Amsterdam, The Netherlands.

International Journal of Psychophysiology : Official Journal of the International Organization of Psychophysiology
|June 1, 1997
PubMed
Summary
This summary is machine-generated.

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

Interaction of nucleus reuniens and entorhinal cortex projections in hippocampal field CA1 of the rat.

Brain structure & function·2016
Same author

Slow brain oscillations of sleep, resting state, and vigilance.

Progress in brain research·2011
Same author

Plasticity-modulated seizure dynamics for seizure termination in realistic neuronal models.

Journal of neural engineering·2011
Same author

Progressive supranuclear palsy.

JBR-BTR : organe de la Societe royale belge de radiologie (SRBR) = orgaan van de Koninklijke Belgische Vereniging voor Radiologie (KBVR)·2009
Same author

The cortical source of the alpha rhythm.

Neuroscience letters·2009
Same author

Interactions between different EEG frequency bands and their effect on alpha-fMRI correlations.

NeuroImage·2009
Same journal

Comparison of slow-paced breathing interventions with and without an inhalation-hold on physiological outcomes: A randomized cross-over pilot study.

International journal of psychophysiology : official journal of the International Organization of Psychophysiology·2026
Same journal

The role of inferior frontal gyrus in emotion regulation: Evidence from fMRI and tDCS investigation.

International journal of psychophysiology : official journal of the International Organization of Psychophysiology·2026
Same journal

Trait anxiety in young adults is more consistently associated with resting-state EEG microstate transitions than with stationary spectral power.

International journal of psychophysiology : official journal of the International Organization of Psychophysiology·2026
Same journal

Neural modulation of emotional-word processing during the attentional blink under varying T1 task demands: An ERP study.

International journal of psychophysiology : official journal of the International Organization of Psychophysiology·2026
Same journal

Attentional resource allocation in the early stages of motor skill learning.

International journal of psychophysiology : official journal of the International Organization of Psychophysiology·2026
Same journal

Operation-specific ERP dynamics of arithmetic processing in children with developmental dyscalculia.

International journal of psychophysiology : official journal of the International Organization of Psychophysiology·2026
See all related articles

Alpha rhythms in electroencephalogram (EEG) signals may originate from filtered noise or chaotic dynamics. Understanding these sources is key to developing a general model for alpha rhythm generation in neuronal networks.

Area of Science:

  • Neuroscience
  • Signal Processing
  • Computational Biology

Background:

  • Alpha rhythms are sinusoidal-like oscillations (8-12 Hz) observed in electroencephalogram (EEG) recordings.
  • The irregular nature of alpha rhythms suggests potential origins in noise or intrinsic chaotic processes within neuronal networks.
  • Defining noise in neurophysiology can refer to unwanted signals or intrinsic random fluctuations (stochastic character).

Purpose of the Study:

  • To investigate whether alpha rhythms are generated as filtered noise, deterministic oscillations influenced by noise, or chaotic dynamics.
  • To explore the theoretical implications of identifying the source of alpha rhythms for developing a general macroscopic model of EEG generation.
  • To examine the origins of noise and chaos in neuronal networks and the methods to differentiate between these sources.

Related Experiment Videos

Main Methods:

  • Review of experimental evidence and theoretical arguments concerning the origins of noise and chaos in neuronal networks.
  • Introduction of signal analysis techniques to discriminate between filtered noise and chaotic oscillations in EEG data.
  • Discussion of the implications of signal analysis findings for understanding alpha rhythm generation.

Main Results:

  • Presents data on potential sources of noise and chaos within neuronal networks.
  • Details signal analysis methods for distinguishing between noise-driven and chaotic oscillatory phenomena.
  • Discusses how these analyses inform the debate on the generation of alpha rhythms.

Conclusions:

  • The origin of alpha rhythms (filtered noise vs. chaotic dynamics) has significant theoretical value for modeling EEG generation at the neuronal network level.
  • Further research is needed to bridge the understanding of macroscopic EEG properties to microscopic neuronal mechanisms.
  • Discriminating between noise and chaos is crucial for a comprehensive model of alpha rhythm dynamics.