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Updated: Nov 9, 2025

Analyzing the Size, Shape, and Directionality of Networks of Coupled Astrocytes

Analyzing the Size, Shape, and Directionality of Networks of Coupled Astrocytes

Published on: October 4, 2018

Vibrational resonance in a neuron-astrocyte coupled model.

Ali Calim¹, Andre Longtin², Muhammet Uzuntarla¹

¹Department of Biomedical Engineering, Zonguldak Bulent Ecevit University, Zonguldak, Turkey.

Philosophical Transactions. Series A, Mathematical, Physical, and Engineering Sciences

|April 12, 2021

Summary

Astrocytes, a type of glial cell, influence neuronal information processing. Their interaction with neurons can create a double vibrational resonance, enhancing weak signal detection in neurons.

Keywords:

astrocyte calcium excitability vibrational resonance

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The Indirect Neuron-astrocyte Coculture Assay: An In Vitro Set-up for the Detailed Investigation of Neuron-glia Interactions

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Published on: November 14, 2016

Area of Science:

Neuroscience
Biophysics
Nonlinear Dynamics

Background:

Recent findings highlight astrocytes' role in neuronal information processing.
Astrocytes regulate their microenvironment through neuron-glia communication via gliotransmitters.
Vibrational resonance is a phenomenon studied in neuronal signal processing.

Purpose of the Study:

To investigate the phenomenon of vibrational resonance in neurons.
To analyze the interaction between neurons and astrocytes in the context of resonance.
To understand how astrocyte dynamics affect neuronal signal detection.

Main Methods:

Modeling a neuron-astrocyte pair.
Analyzing intracellular dynamics of astrocytes.
Investigating the effect of driving signal amplitudes on neuronal performance.

Main Results:

Astrocytes' intracellular dynamics can induce a double vibrational resonance in neurons.
This effect manifests as two distinct wells in weak signal detection performance.
The phenomenon is centered at different high-frequency driving amplitudes.

Conclusions:

The interaction between neurons and astrocytes significantly impacts neuronal signal processing.
Double vibrational resonance in neurons is controllable and emerges from the interplay of time scales.
This study elucidates a novel mechanism for enhanced weak signal detection in neural systems.