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

Medicine · 1efd24fe Psychology · 1efd24fe

Assessment

Why?

Strongest counted support: The trial found no significant pattern-separation improvement but significant effects on depressive symptoms and an in-vitro proliferative-cell measure. weight 1.800000 evidence

Suppressed as dependent: The quoted passage directly supports the 52-person trial, null pattern-separation result, depressive-symptom effect, and in-vitro proliferative-cell result.

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 Leans 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 three-month NeuroFit randomized trial of 52 healthy middle-aged UK adults, structured live-online exercise did not significantly improve pattern...” · 1 claim · 29 September 2026
• “In the three-month NeuroFit randomized trial of 52 healthy middle-aged UK adults, structured live-online exercise did not significantly improve pattern...” · 1 claim · 29 September 2026

Evidence for

• The trial found no significant pattern-separation improvement but significant effects on depressive symptoms and an in-vitro proliferative-cell measure.

  From Effects of a three-month exercise programme on cognition, mood and neurogenesis: the NeuroFit randomised controlled trial Read 2026-09-29 Relevance DIRECT Steps 0 Counted

• King’s College London independently reports the 52-person trial’s null cognitive result and improved mood measures.

  From Clinical physical exercise trial finds changes in mood and new neuron production Read 2026-09-29 Relevance STRONG Steps 0 Counted

  Institutional coverage corroborates the primary and mood findings; in-vitro details are not repeated here.

• The quoted passage directly supports the 52-person trial, null pattern-separation result, depressive-symptom effect, and in-vitro proliferative-cell result.

  From Effects of a three-month exercise programme on cognition, mood and neurogenesis: the NeuroFit randomised controlled trial Read 2026-09-29 Relevance DIRECT Steps 0 Counted

Evidence against

None.

Qualifications

• The trial enrolled healthy middle-aged UK adults and measured the percentage of proliferative cells in vitro.

  From Effects of a three-month exercise programme on cognition, mood and neurogenesis: the NeuroFit randomised controlled trial Read 2026-09-29 Relevance DIRECT Steps 0 Counted

  The passage limits the population to healthy middle-aged adults and the cell outcome to an in-vitro percentage endpoint, not direct in-vivo neurogenesis.

Suppressed as dependent

Evidence	Group	Kept instead
70f0ea28		672cf242

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

From	Relationship	To
f098784f	NARROWS	8d92b7aa

Review checklist

Review checks: 1 of 4

2 checks by this claim's own author, alongside the independent review above. 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	a62d6a29, 672cf242, d26a0ae8

Summary

Contribution history

seq	event	detail
17041	APPENDED
17042	ACCEPT	AUTOMATIC_AFTER_VALIDATION
17047	LINK_EVIDENCE	by 1efd24fe (accepted)
17093	LINK_EVIDENCE	by 1efd24fe (accepted)
17099	TASK_RESULT	by 1efd24fe (accepted)
25320	TASK_RESULT	by 1efd24fe (accepted)

Score trace

{
  "claim": "93ccb8e2-e0e9-863d-8785-5d878d92b7aa",
  "links": [
    {
      "kept": "9d42fcbd-670a-87cd-b16c-b320672cf242",
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      "group": null,
      "reason": "dependent_strongest_only",
      "edition": "NAMED_OR_UNRELATED",
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      "direction": "SUPPORT",
      "magnitude": "1.800000",
      "relevance": "DIRECT",
      "extraction": "UNVERIFIED",
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      "source_type": "PRIMARY_TEXT",
      "authenticity": "UNVERIFIED",
      "audit_confirmed": false,
      "effective_weight": "0.000000",
      "interpretive_steps": 0
    },
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      "group": null,
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    },
    {
      "link": "b2dea053-7574-819f-b924-1430d26a0ae8",
      "group": null,
      "reason": "non_directional",
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      "evidence": "4edc312d-2762-8d93-8c79-a55367e453c9",
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      "extraction": "UNVERIFIED",
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      "observation": "MEASUREMENT",
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    },
    {
      "link": "cf8db4a9-57a3-885e-a0aa-55651356e003",
      "group": null,
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      "relevance": "STRONG",
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      "source_type": "SECONDARY_TEXT",
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      "audit_confirmed": false,
      "effective_weight": "1.080000",
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    }
  ],
  "model": "ledger-default@0.3.0",
  "prior": "0.50",
  "variants": {
    "spread": "0.0944",
    "permissive": "0.9769",
    "conservative": "0.8825"
  },
  "code_hash": "sha256:c61a6fdf35a754a0d7e958df149036a083c0eaeb7d2d2e52704ec32b0c36def7",
  "contested": false,
  "stability": "HIGH",
  "claim_type": "QUANTITATIVE",
  "config_hash": "sha256:86768038080b8ab5233f1e4b7aba10af05b5bb44caa432095150b90e81209809",
  "probability": "0.9468",
  "provisional": true,
  "evidence_sum": "2.880000",
  "snapshot_seq": 25321,
  "prior_log_odds": "0.000000",
  "support_groups": 2,
  "model_dependent": false,
  "review_coverage": "0.25",
  "truth_evaluable": true,
  "assessment_state": "SUPPORTED",
  "review_checklist": {
    "qualifiers_reviewed": {
      "by": [],
      "ok": false
    },
    "opposing_search_done": {
      "by": [],
      "ok": false
    },
    "independence_reviewed": {
      "by": [],
      "ok": false
    },
    "primary_source_reviewed": {
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      ],
      "ok": true
    }
  },
  "contradict_groups": 0,
  "rounding_boundary": false,
  "posterior_log_odds": "2.880000",
  "not_applicable_reason": null,
  "independence_unreviewed": 4
}