Utility type · phase disruption · compare metrics
Tachycardia in hypnagogia in N1 sleep (fragmentation)
During fragmentation bursts, tachycardia in hypnagogia, showing up in short, interrupted bursts plays out under N1 sleep at 4.18–9 Hz (theta). Chemistry here runs GABA, norepinephrine, orexin, and the markers people report are micro-arousal body hitch, racing heartbeat, restless limbs, stage-boundary sensory gate. Gauges read 32/72/33 (atonia/arousal/coherence).
Stage vs disruption comparison
| Signal | Stage baseline | This disruption row |
|---|---|---|
| Dominant band | theta | theta |
| Hz window | 4–7 Hz | 4.18–9 |
| Arousal pressure | low–moderate | 72 / 100 |
| Stage coherence | stable | 33 / 100 |
| Context | — | fragmentation |
Somatic disruption markers → text
Dataset readout: Tachycardia in hypnagogia in N1 (fragmentation). Cortical window 4.18–9 Hz (theta). Atonia=N/A. Markers drive the text below — not dream-symbol meanings.
- micro-arousal body hitch
- racing heartbeat
- restless limbs
- stage-boundary sensory gate
Transmitters in this row:
- GABA
- norepinephrine
- orexin
Mechanism stack
- N1 sleep frames tachycardia in hypnagogia, showing up in short, interrupted bursts, against a theta trace of 4.18–9 Hz.
- Chemistry is GABA-led here (inhibitory tone rises across cortical and spinal targets), with norepinephrine, orexin co-listed; density 103.3 on this row.
- Dataset row #65440852: atonia 32/100, arousal 72/100, coherence 33/100 — the brake is engaged but not complete, over an unsettled, choppy backdrop.
- On this fragmentation row the markers stack as "stage-boundary sensory gate" → "restless limbs" → "racing heartbeat" → "micro-arousal body hitch" — landing as separate bursts instead of one continuous run.
- "micro-arousal body hitch" gets weighted as fragmentation body evidence for N1 sleep in Lab Search — a mechanism read, not a symbol lookup.
For N1 sleep during fragmentation bursts, "micro-arousal body hitch" is exactly the kind of detail the Lab weights over plot — mechanism before meaning.
Felt on waking
On waking, the marker named most often is "micro-arousal body hitch" with "racing heartbeat" close behind. Because this row sits at fragmentation in N1 sleep, it resists being told as one memory — expect fragments, not a narrative.
Related physiology
This row connects to Cycle timing — how episodes lengthen and shift across the night.
How Lab Search uses this row
"micro-arousal body hitch" — tied here to GABA activity is treated by Lab Search as a body-side input for N1 sleep, not as imagery to interpret — it changes the mechanism weighting, not the story.
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 Tachycardia in hypnagogia in N1 sleep (fragmentation)
This row is Tachycardia in hypnagogia in N1 (fragmentation). Cortical window 4.18–9 Hz (theta). Atonia state: N/A. Density 103.3. Chart seed 65440852 is deterministic for this URL — the trace is a model of the row, not a clinical EEG.
Gauges on this page: atonia 32, arousal 72, coherence 33. Markers: micro-arousal body hitch, racing heartbeat, restless limbs, stage-boundary sensory gate. Transmitters tagged: GABA, norepinephrine, 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 "micro-arousal body hitch" with "racing heartbeat" close behind. Because this row sits at fragmentation in N1 sleep, it resists being told as one memory — expect fragments, not a narrative. For N1 sleep during fragmentation bursts, "micro-arousal body hitch" is exactly the kind of detail the Lab weights over plot — mechanism before meaning.
- N1 sleep frames tachycardia in hypnagogia, showing up in short, interrupted bursts, against a theta trace of 4.18–9 Hz.
- Chemistry is GABA-led here (inhibitory tone rises across cortical and spinal targets), with norepinephrine, orexin co-listed; density 103.3 on this row.
- Dataset row #65440852: atonia 32/100, arousal 72/100, coherence 33/100 — the brake is engaged but not complete, over an unsettled, choppy backdrop.
- On this fragmentation row the markers stack as "stage-boundary sensory gate" → "restless limbs" → "racing heartbeat" → "micro-arousal body hitch" — landing as separate bursts instead of one continuous run.
- "micro-arousal body hitch" gets weighted as fragmentation body evidence for N1 sleep in Lab Search — a mechanism read, not a symbol lookup.
How Lab Search should use this row
"micro-arousal body hitch" — tied here to GABA activity is treated by Lab Search as a body-side input for N1 sleep, not as imagery to interpret — it changes the mechanism weighting, not the story. Then open Decode if you also have a plot. The plot is optional; the body line is not.
This utility will not treat Tachycardia in hypnagogia 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.
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.