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digital-drosophila/registry/catalog-20260929/evidence/phase4r-timing-audit/audit/mechanism-summary.json
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{
"candidate_generated": false,
"five_reference_trials_two_repeats_exact": true,
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},
{
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}
],
"full_runtime_ten_repeats_exact": true,
"heldout_all_windows_ratio_below_one_N": false,
"heldout_all_windows_ratio_below_one_Q": true,
"important_qualification": "Heldout 5ms/10ms credit exceeds the narrower random-N expectation (2.649x/1.338x), but calibration does not replicate this and all ratios remain below the prior 3x gate.",
"interpretation_limits": [
"Phase 4Q failure reproduced only for its declared timing protocol; it is not evidence against all local credit rules.",
"Early target-KC activity and late 90ms reinforcement are measured associations. No APL ablation was authorized, so APL causation remains unresolved.",
"The exact uniform-time expectations remove random-US sampling noise on the same KC event stream.",
"US=0..120ms versus 30..110ms is a protocol difference, not an event-energy mismatch. Both use one forced spike per selected DAN.",
"The same 1.8ms delay on KC and DAN leaves relative timing unchanged. Counting only KC arrival is a different gate convention.",
"Pre-existing Phase 4Q controls were offline algebraic tests. This audit adds recorded events, disk checkpoint restoration, real full-runtime repeats and frozen reference comparisons.",
"No timing/eligibility candidate was selected. Independent heldout seeds replicate diagnosis; heldout odor generalization was not tested."
],
"mechanism_labels": [
"KC-US-TIMING-MISMATCH-SUPPORTED",
"RANDOM-TIMING-DISTRIBUTION-EFFECT-CONFIRMED",
"CURRENT-GATE-CREDIT-UNCHANGED-BY-DAN-FEEDBACK",
"FROZEN-RUNTIME-REGRESSION-PASS"
],
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"next_step": "Pre-register stimulus and reinforcement timing using independent calibration data; keep brain and learning magnitude frozen. Do not select an optimum from heldout results.",
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}
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