NIRVA
NIRVALife

The Space Between Reaction and Regulation

Begin
Notice · Interrupt & Identify · Regulate
Validate
Align
Join the WaitlistExplore I’mPossible

Nirva Institute · Astrocytes · Communication & Networks

How Astrocytes Communicate with Neurons

Calcium waves, gliotransmitters, and slow reciprocal signaling.

✦
The Nirva InstitutePublished 2026≈ 7 min read
Save

Astrocyte-to-neuron communication does not use action potentials. It uses a slower, chemically diverse repertoire that can nonetheless powerfully influence neural activity.

§ 1

Calcium as the internal messenger

Astrocyte activity is often monitored by tracking intracellular calcium waves, which propagate within and between astrocytes.180,185

§ 2

Gliotransmitters

Astrocytes release signaling molecules — including glutamate, ATP, D-serine, and GABA — that can modulate synaptic transmission.185,184

§ 3

Slow, region-wide influence

Because astrocyte signaling is slower and more diffuse than neural firing, it is well suited to shape network-level states rather than millisecond decisions.181,186

Scientific References

Primary literature

AMA numeric style. Citation numbers are unified across the Nirva Life ecosystem — the same number refers to the same reference across every library article. Full registry is anchored in the Cornerstone Paper.

  1. 180.Khakh BS, Deneen B. The emerging nature of astrocyte diversity. Annu Rev Neurosci. 2019;42:187-207. PubMed ↗
  2. 181.Santello M, Toni N, Volterra A. Astrocyte function from information processing to cognition and cognitive impairment. Nat Neurosci. 2019;22(2):154-166. PubMed ↗
  3. 184.Perea G, Navarrete M, Araque A. Tripartite synapses: astrocytes process and control synaptic information. Trends Neurosci. 2009;32(8):421-431. PubMed ↗
  4. 185.Araque A, Carmignoto G, Haydon PG, Oliet SHR, Robitaille R, Volterra A. Gliotransmitters travel in time and space. Neuron. 2014;81(4):728-739. PubMed ↗
  5. 186.Halassa MM, Haydon PG. Integrated brain circuits: astrocytic networks modulate neuronal activity and behavior. Annu Rev Physiol. 2010;72:335-355. PubMed ↗

Next Recommended Reading

Astrocytes and Synaptic Plasticity

How the environment around a synapse shapes its strength.

Continue Reading

Continue Exploring

Library

Astrocytes and Neurotransmitters

Uptake, recycling, and release.

Read

Library

The Astrocyte Network: The Brain’s Hidden Communication System

A parallel network alongside the neuronal one.

Read

Library

The Neuroscience of Body-First Change

Interoception, predictive processing, and the ascending pathways.

Read
Return to the CornerstoneExplore Astrocytes