acetylcholine
REM-linked cortical drive
Utility type · EEG baseline · metric dataset
REM/mid-cycle: REM thermoregulatory blunting
REM thermoregulatory blunting, repeating well inside an established stretch maps onto [odd hot/cold shifts · reduced shivering drive · skin temperature drift] inside theta 4–9 Hz, atonia "preserved" — a mechanism read, not a symbol lookup.
Cortical activity model
| Metric | Value |
|---|---|
| EEG min (Hz) | 4 |
| EEG max (Hz) | 9 |
| Band | theta |
| Phase | REM / mid-cycle |
| Atonia state | preserved |
| Density score | 94.4 |
Somatic → text readout
Dataset readout: REM thermoregulatory blunting in REM (mid-cycle). Cortical window 4–9 Hz (theta). Atonia=preserved. Markers drive the text below — not dream-symbol meanings.
- odd hot/cold shifts
- reduced shivering drive
- skin temperature drift
- acetylcholine
- serotonin
- orexin
Mechanism stack
- REM thermoregulatory blunting, repeating well inside an established stretch sits inside REM sleep, with cortical activity running theta at 4–9 Hz.
- Acetylcholine leads the chemistry here (cholinergic REM drive elevates cortical activation); serotonin, orexin also show up; density for this row is 94.4.
- Dataset row #10023: atonia 90/100, arousal 33/100, coherence 58/100 — motor inhibition is strong here, set against a fairly even backdrop.
- On this mid-cycle row the markers stack as "odd hot/cold shifts" → "reduced shivering drive" → "skin temperature drift" — holding a steady pattern well inside the cycle.
- "odd hot/cold shifts" gets weighted as mid-cycle body evidence for REM sleep in Lab Search — treated as physiology here, not folklore.
The Lab treats "odd hot/cold shifts" as a mechanism marker when it shows up in the mid-cycle window in REM sleep — not something to look up in a dictionary.
Transmitter focus
serotonin
sensory-gate modulation
orexin
wake-promotion destabilizer
Felt on waking
On waking, the marker named most often is "odd hot/cold shifts" with "reduced shivering drive" close behind. Because this row sits at mid-cycle in REM sleep, it tends to sit in the background, noticed only in hindsight the next morning.
Related physiology
This row connects to PGO & autonomic drive — the pontine spikes and autonomic swings behind eye, breath, and skin signals.
How Lab Search uses this row
Naming "odd hot/cold shifts" — tied here to acetylcholine activity shifts the Lab's REM-sleep reading toward physiology — the BODY line moves, the SIGNAL line does not chase a symbolic guess.
Which markers match waking recall?
Matches noted — open Lab Search with this somatic context.
Search with body context →Was this utility useful?
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How to read REM/mid-cycle: REM thermoregulatory blunting
This row is REM thermoregulatory blunting in REM (mid-cycle). Cortical window 4–9 Hz (theta). Atonia state: preserved. Density 94.4. Chart seed 10023 is deterministic for this URL — the trace is a model of the row, not a clinical EEG.
Gauges on this page: atonia 90, arousal 33, coherence 58. Markers: odd hot/cold shifts, reduced shivering drive, skin temperature drift. Transmitters tagged: acetylcholine, serotonin, orexin. Those fields are why two “similar” titles are not duplicates. If a marker did not happen to you, say so — do not wear the whole row.
What the body is doing — not what the image “means”
On waking, the marker named most often is "odd hot/cold shifts" with "reduced shivering drive" close behind. Because this row sits at mid-cycle in REM sleep, it tends to sit in the background, noticed only in hindsight the next morning. The Lab treats "odd hot/cold shifts" as a mechanism marker when it shows up in the mid-cycle window in REM sleep — not something to look up in a dictionary.
- REM thermoregulatory blunting, repeating well inside an established stretch sits inside REM sleep, with cortical activity running theta at 4–9 Hz.
- Acetylcholine leads the chemistry here (cholinergic REM drive elevates cortical activation); serotonin, orexin also show up; density for this row is 94.4.
- Dataset row #10023: atonia 90/100, arousal 33/100, coherence 58/100 — motor inhibition is strong here, set against a fairly even backdrop.
- On this mid-cycle row the markers stack as "odd hot/cold shifts" → "reduced shivering drive" → "skin temperature drift" — holding a steady pattern well inside the cycle.
- "odd hot/cold shifts" gets weighted as mid-cycle body evidence for REM sleep in Lab Search — treated as physiology here, not folklore.
How Lab Search should use this row
Naming "odd hot/cold shifts" — tied here to acetylcholine activity shifts the Lab's REM-sleep reading toward physiology — the BODY line moves, the SIGNAL line does not chase a symbolic guess. Then open Decode if you also have a plot. The plot is optional; the body line is not.
This utility will not treat REM thermoregulatory blunting as a spirit, a pregnancy test, or a death omen. It will treat it as a stage-bound somatic metric. If symptoms are nightly, worsening, or include dream enactment, that is clinical, not catalog.
A note from Vigen
I am Vigen. I left REM/mid-cycle: REM thermoregulatory blunting in the catalog because the gauges (90/33/58) plus markers (odd hot/cold shifts, reduced shivering drive, skin temperature drift) are enough to be useful. If they were not, this URL would stay noindex.
Find the mechanism behind tonight’s signal
Not a symbol dictionary. Describe what you remember — images, body sensations, waking state — in Lab Search for the closest dream or somatic mechanism page.
Open Lab Search →Not a medical diagnosis. Dataset row for exploration only.