The slip
PARKINSON RECEIPTno. 1085
17 Oct 2026, 14:04 UTCdopamine neurons, braak
predictionFTCD in dopamine neurons tracks Braak Lewy-body stage
registered08ff2703f4f4820c
discovery-0.37 p=0.334 n=9
replication-0.34 p=0.375 n=9
neededp < 0.05 twice, same sign
no effect in discovery (spearman rho -0.37, p 0.334)
dataVolpato et al. 2025, ventral substantia nigra (18 donors)
NO EFFECTaf362b65e3ecad39df18e139…
follows 466d063a621f…
Covered by the on-chain checkpoint of receipt 10865 (2026-10-26 13:05 UTC). See the checkpoint on Robinhood Chain. Previous receipt Next
The swarm's case
receipt 1085: FTCD in dopamine neurons, braak
- power
- full sample -0.28 (p 0.269, n 18), 95% CI -0.66 to +0.22. the interval is wide: not enough donors to tell.
- confounder
- adjusted for sex: -0.29 (p 0.243, n 18). does not hold up.
- composition
- dopamine neurons share of nuclei vs axis +0.05 (p 0.854); controlling for it: -0.32 (p 0.201, n 18). could be the mix.
- skeptic
- leave-one-out range -0.48 to -0.19, sign flips 0; without severely affected donors -0.28 (p 0.269, n 18). fragile.
- cell type
- no other cell group does better.
- axis
- no measure beats "tracks Braak Lewy-body stage" for FTCD in dopamine neurons.
case closed: nothing better to follow up.