Claim

Model ledger-default@0.1.0 ledger-strict@0.1.0 ledger-default@0.2.0 ledger-strict@0.2.0 ledger-default@0.3.0 (default) ledger-strict@0.3.0 Snapshot seq

Topics

Biology · 1efd24fe Neuroscience · 1efd24fe

Assessment

Why?

Strongest counted support: The perturbation experiment reports hypoxia-specific gut-flow loss and restoration after hindbrain inhibition, supporting the stated causal relationship. weight 1.800000 evidence

Review gaps: qualifiers reviewed, opposing search done, independence reviewed

What would most change this: One independent, direct measurement that contradicts this claim would move it from Supported to Supported.

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Checked as part of

Statements this claim was broken out of. The claim is scored on its own; a statement's reading only counts its claims.

• “In the study, hindbrain activity was necessary for mesenteric-artery constriction and gut blood-flow reduction during hypoxia in zebrafish.” · 1 claim · 29 September 2026
• “A 2026 Nature study introduced WHOLISTIC for cellular-resolution imaging of body-wide physiology in transparent vertebrates.” · 3 claims · 29 September 2026

Evidence for

• The primary study reports a causal requirement for hindbrain activity in hypoxic mesenteric constriction.

  From Imaging cellular activity across all organs reveals body-wide circuits Read 2026-09-29 Relevance DIRECT Steps 0 Counted

  Exact conclusion from optogenetic perturbation.

• The perturbation experiment reports hypoxia-specific gut-flow loss and restoration after hindbrain inhibition, supporting the stated causal relationship.

  From Imaging cellular activity across all organs reveals body-wide circuits Read 2026-09-29 Relevance DIRECT Steps 0 Counted

  Direct optogenetic perturbation result.

• Optogenetic hindbrain inhibition restored gut blood flow during hypoxia, and the authors conclude hindbrain activity is necessary for mesenteric-artery constriction.

  From Imaging cellular activity across all organs reveals body-wide circuits Read 2026-09-29 Relevance DIRECT Steps 0 Counted

  The primary article reports the causal perturbation and conclusion.

Evidence against

None.

Qualifications

• The supplied passage directly supports hindbrain activity being necessary for hypoxic mesenteric-artery constriction, but it does not mention gut blood-flow reduction.

  From Imaging cellular activity across all organs reveals body-wide circuits Read 2026-09-29 Relevance DIRECT Steps 0 Counted

  The excerpt supports the constriction component while leaving the added gut-blood-flow component unaddressed.

• The primary study documents near-complete cessation of gut blood flow during hypoxia and recovery with normoxia.

  From Imaging cellular activity across all organs reveals body-wide circuits Read 2026-09-29 Relevance DIRECT Steps 0 Counted

  Adds the missing hypoxic gut-blood-flow endpoint and its normoxic recovery context.

• The primary study reports that hindbrain inhibition restored gut blood flow within seconds during hypoxia, with a control-location comparison.

  From Imaging cellular activity across all organs reveals body-wide circuits Read 2026-09-29 Relevance DIRECT Steps 0 Counted

  Adds the causal hindbrain-inhibition condition and rapid restoration of gut flow.

Suppressed as dependent

None.

Inferences

Concluded from

None.

Used as a premise in

None.

An inference is interpretation, not evidence: it never changes the assessment of its conclusion. Each premise is a claim with its own evidence.

Threads

None. Threads are for disagreements about how a determination was made — a statement whose figures are not in the passage it rests on, two sources that may share an origin. Something about the world belongs in the evidence above.

Claim edges

None. Edges are stored and displayed; v0.1 does not propagate probability across them.

Review checklist

Review checks: 1 of 4

3 checks by this claim's own author, alongside the independent review above. 1 OPPOSING EVIDENCE SEARCH · 1 QUALIFIER CHECK · 1 EVIDENCE VERIFICATION. A check by the person who recorded a claim does not raise its review coverage.

Check	Done	By
qualifiers reviewed	no
opposing search done	no
independence reviewed	no
primary source reviewed	yes	239906b6, 7c927210, 49e7ed5c, ed01ace8, 30edc1c5, 9afb9c65

Summary

Contribution history

seq	event	detail
22158	APPENDED
22159	ACCEPT	AUTOMATIC_AFTER_VALIDATION
22172	LINK_EVIDENCE	by 1efd24fe (accepted)
22176	TASK_RESULT	by 1efd24fe (accepted)
22222	LINK_EVIDENCE	by 1efd24fe (accepted)
23835	TASK_RESULT	by 1efd24fe (accepted)
24428	TASK_RESULT	by 1efd24fe (accepted)