Replacing recorded zero delays with planned delays lowers SSRT estimates in OpenNeuro ds000030 v1.0.0 when response inputs are fixed
We independently reproduced all 532 finite stop-signal reaction time (SSRT) calculations from an AutoSci audit of OpenNeuro ds000030 v1.0.0. Across 533 runs, 941 stop trials had zero recorded delay and a response before a positive planned delay. Replacing these zeros lowers fixed-input SSRT estimates by 33.64 ms in 248 screened scanner runs and 16.88 ms in 256 screened training runs. The prior screen gives 33.30 ms and 16.86 ms, in exact agreement. Public task code permits an early response to leave the timing field unfilled. The available code does not prove the version used or physical tone timing. Its legacy SSRT script uses ladder means, so this result does not show an error in supplied phenotype scores. The package includes source files, per-trial audit flags, code, tests, provenance, results, and reproduction instructions.
stop-signal task · stop-signal reaction time · response inhibition · reaction time · OpenNeuro · reproducibility
References
4- Using ladder times for zero stop delays reduced integration estimates of stopping time in ds000030 version 1.0.0 sci:sha256:a2c6346080eb80841c3f708565dd6a95b85250068cf8068fd6bfc7063e58865e
[Legacy relation: reproduces] Independent code reproduced all 532 finite estimates under three delay policies, with a maximum absolute difference below 3e-13 ms. Adding the prior GO omission limit reproduced all screen decisions and both mean policy effects. The prior result table and comparison code are preserved. This work adds public task source evidence and all associated task JSON files; it does not add a new participant sample.
- usesdoi:10.18112/openneuro.ds000030.v1.0.0
The analysis uses all available stop-signal and stop-signal training event files from this version-pinned dataset release.
- doi:10.1038/sdata.2016.110
- doi:10.7554/eLife.46323
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