First-pass extracted concept

locus coeruleus-salience network sensitivity model of insomnia

Candidate: concept label1 source documents3 linked claims

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Aliases

LC-salience network model

Extracted Explainers

What the tool is doing

This concept proposes that insomnia vulnerability involves abnormal sensitivity of the locus coeruleus or increased input from the salience network and related circuits. The abnormality is proposed to persist even during REM sleep.

Source 1DOI PubMed

Resources required

Testing it would require studies capable of probing locus coeruleus and salience-network function during sleep, plus intervention or animal work mentioned by the review.

Source 1DOI PubMed

What problem it solves

It gives a specific neural mechanism for the review's broader hyperarousal account of insomnia.

Source 1DOI PubMed

What it does not solve

The abstract does not establish whether this mechanism is causal in all insomnia cases or how it should be therapeutically targeted.

Source 1DOI PubMed

Alternatives

The review contrasts this proposal with models emphasizing circadian and homeostatic sleep regulation circuits.

Source 1DOI PubMed

Evidence Snippets

The model proposes that in people with a vulnerability to develop insomnia, the locus coeruleus is more sensitive to-or receives more input from-the salience network and related circuits, even during rapid eye movement sleep, when it should normally be sound asleep.

Evidence 1Source 1DOI PubMedprovenance

Supporting Sources

Source 1review2020Physiological ReviewsDOI PubMed

1 evidence snippet 3 linked claims Claim 1 Claim 2 Claim 3

Linked Claims

Claim 1consequence modelsupports2020Source 1DOI PubMed

The proposed vulnerability may trigger a downward spiral in which insufficient overnight adaptation to distress leads to accumulating hyperarousal, impaired restful sleep, and increased risk of other mental health adversity.

Quoted textsource-backed

This vulnerability may ignite a downward spiral of insufficient overnight adaptation to distress, resulting in accumulating hyperarousal, which, in turn, impedes restful sleep and moreover increases the risk of other mental health adversity.

Claim 2proposed mechanismsupports2020Source 1DOI PubMed

The review proposes that in people vulnerable to insomnia, the locus coeruleus is more sensitive to or receives more input from the salience network and related circuits, including during REM sleep.

Quoted textsource-backed

The model proposes that in people with a vulnerability to develop insomnia, the locus coeruleus is more sensitive to-or receives more input from-the salience network and related circuits, even during rapid eye movement sleep

Claim 3research implicationsupports2020Source 1DOI PubMed

The proposed model opens possibilities for novel intervention studies and animal studies to accelerate neuroscience research on insomnia.

Quoted textsource-backed

The proposed model opens up the possibility for novel intervention studies and animal studies, thus accelerating the ignition of a neuroscience of insomnia