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Astrocytes, Not Neurons, Key to Memory Stability

10/16/2025

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Summary

Story summary

A Nature study from the RIKEN Center for Brain Science shows astrocytes, not neurons, stabilize long-term memories.
Astrocytes activate during memory recall, especially in the amygdala, and produce the Fos protein.
Blocking astrocyte signaling yields unstable memories.
The study also shows that forced activation caused mice to misremember mild experiences as severe and could inform PTSD treatments and artificial intelligence memory models.

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Story summary

A Nature study from the RIKEN Center for Brain Science shows astrocytes, not neurons, stabilize long-term memories.
Astrocytes activate during memory recall, especially in the amygdala, and produce the Fos protein.
Blocking astrocyte signaling yields unstable memories.
The study also shows that forced activation caused mice to misremember mild experiences as severe and could inform PTSD treatments and artificial intelligence memory models.