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Related Concept Videos

Oscillations about an Equilibrium Position01:04

Oscillations about an Equilibrium Position

Stability is an important concept in oscillation. If an equilibrium point is stable, a slight disturbance of an object that is initially at the stable equilibrium point will cause the object to oscillate around that point. For an unstable equilibrium point, if the object is disturbed slightly, it will not return to the equilibrium point. There are three conditions for equilibrium points—stable, unstable, and half-stable. A half-stable equilibrium point is also unstable, but is named so because...
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Damped Oscillations01:07

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Time and frequency -Domain Interpretation of Phase-lag Control01:21

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Phase-lag controllers are widely used in control systems to improve stability and reduce steady-state errors. A dimmer switch controlling the brightness of a light bulb serves as a practical example of phase-lag control, gradually adjusting the bulb's brightness. Mathematically, phase-lag control or low-pass filtering is represented when the factor 'a' is less than 1.
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Related Experiment Video

Updated: May 15, 2026

Optogenetic Entrainment of Hippocampal Theta Oscillations in Behaving Mice
07:33

Optogenetic Entrainment of Hippocampal Theta Oscillations in Behaving Mice

Published on: June 29, 2018

Gamma oscillations: precise temporal coordination without a metronome.

Danko Nikolić1, Pascal Fries, Wolf Singer

  • 1Department of Neurophysiology, Max Planck Institute for Brain Research, Deutschordenstrasse 46, D-60528 Frankfurt/M, Germany. danko.nikolic@gmail.com

Trends in Cognitive Sciences
|January 5, 2013
PubMed
Summary
This summary is machine-generated.

Gamma oscillations are not simple sine waves; they organize neuronal firing to specific phases. This phase-locking mechanism underlies important brain synchronization phenomena.

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Related Experiment Videos

Last Updated: May 15, 2026

Optogenetic Entrainment of Hippocampal Theta Oscillations in Behaving Mice
07:33

Optogenetic Entrainment of Hippocampal Theta Oscillations in Behaving Mice

Published on: June 29, 2018

Generation of Local CA1 γ Oscillations by Tetanic Stimulation
08:02

Generation of Local CA1 γ Oscillations by Tetanic Stimulation

Published on: August 14, 2015

Automatic Detection of Highly Organized Theta Oscillations in the Murine EEG
09:35

Automatic Detection of Highly Organized Theta Oscillations in the Murine EEG

Published on: March 10, 2017

Area of Science:

  • Neuroscience
  • Computational Neuroscience
  • Brain Function

Background:

  • Gamma oscillations are a key neural rhythm implicated in cognitive processes.
  • Previous models often treated gamma oscillations as uniform, continuous waves.

Purpose of the Study:

  • To challenge the simplistic sine wave model of gamma oscillations.
  • To highlight the functional role of phase-specific neuronal discharges within gamma rhythms.

Main Methods:

  • Conceptual analysis of neural oscillation dynamics.
  • Review of experimental evidence on neuronal firing patterns during gamma activity.

Main Results:

  • Gamma oscillations do not possess a constant frequency but rather a dynamic cycle.
  • Neuronal discharges are concentrated at specific phases of the gamma cycle, not uniformly distributed.

Conclusions:

  • Gamma oscillations provide a temporal framework for coordinating neuronal activity.
  • Phase-dependent neuronal firing is crucial for functional brain synchronization.