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Related Experiment Video

Updated: Jun 6, 2026

Developing a Behavioral Box for Assessing Prepulse Inhibition and Neural Activity in Psychiatric Animal Models
06:55

Developing a Behavioral Box for Assessing Prepulse Inhibition and Neural Activity in Psychiatric Animal Models

Published on: July 22, 2025

Rhythmic pulsing: linking ongoing brain activity with evoked responses.

Ali Mazaheri1, Ole Jensen

  • 1Donders Institute for Brain, Cognition and Behaviour, Radboud University Nijmegen Nijmegen, Netherlands.

Frontiers in Human Neuroscience
|November 10, 2010
PubMed
Summary
This summary is machine-generated.

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New research challenges the traditional view in electrophysiology. Ongoing brain activity, not random noise, generates evoked responses, offering a new perspective on cognitive processing.

Area of Science:

  • Cognitive Neuroscience
  • Electrophysiology

Background:

  • Conventional electrophysiology assumes evoked brain activity is additive to background noise.
  • Event-related averaging in EEG and MEG aims to isolate responses by canceling random background activity.

Purpose of the Study:

  • To challenge the conventional view of evoked responses in human cognitive electrophysiology.
  • To introduce and explain the concept of "rhythmic pulsing" as a mechanism for generating evoked responses.
  • To provide a unifying framework for understanding ongoing oscillations, evoked responses, and cognitive processing.

Main Methods:

  • Review of recent work challenging traditional electrophysiological assumptions.
  • Introduction of the "rhythmic pulsing" concept to explain non-sinusoidal properties of ongoing brain activity.
Keywords:
alpha oscillationsamplitude asymmetryevoked responsesinhibition

Related Experiment Videos

Last Updated: Jun 6, 2026

Developing a Behavioral Box for Assessing Prepulse Inhibition and Neural Activity in Psychiatric Animal Models
06:55

Developing a Behavioral Box for Assessing Prepulse Inhibition and Neural Activity in Psychiatric Animal Models

Published on: July 22, 2025

  • Physiological explanation of how rhythmic pulsing generates slow cortical evoked responses.

    • Main Results:

    • Ongoing brain activity is not fully averaged out due to non-sinusoidal properties.
    • Systematic modulations in ongoing activity can create slow cortical evoked responses.
    • Rhythmic pulsing offers a physiological explanation for these evoked responses.

    Conclusions:

    • The conventional model of evoked responses in electrophysiology needs revision.
    • "Rhythmic pulsing" provides a novel framework explaining the generation of evoked responses from ongoing brain activity.
    • This concept links brain oscillations, evoked potentials, and cognitive information processing.