Neuroscience Daily for 20 August: REM Sleep Metabolism, PTSD Astrocytes, Amanita EEG

Neuroscience Daily for 20 August follows 3 stories from r/neuro and r/neuroscience, moving through rem sleep metabolism, ptsd astrocytes, amanita eeg.

Chapters

• 00:00:00 — Intro
• 00:00:08 — REM Sleep Metabolism
• 00:01:03 — PTSD Astrocytes
• 00:02:03 — Amanita EEG
• 00:03:07 — Closing

1. REM Sleep Metabolism

This story is about an energy paradox during REM sleep, based on a paper in Communications Biology. The researchers describe how the sleeping brain can show high energy demand even while some measures of energy supply appear constrained.

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Reddit discussion

2. PTSD Astrocytes

This story is about a proposed astrocyte mechanism in PTSD, from a 2025 paper in Signal Transduction and Targeted Therapy. The authors combined human imaging, post-mortem tissue, and a mouse model to argue that reactive astrocytes increase MAO-B activity and tonic GABA in medial prefrontal cortex.

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Reddit discussion

3. Amanita EEG

This story is about an exploratory human EEG recording during Amanita muscaria use, shared through a GitHub research project. The investigator used a consumer Muse headset with four sensors and compared one mushroom night with a control night.

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Reddit discussion

Episode closing.