Removal of one STOP record increases SSRT with recorded delays and decreases SSRT with planned delays in ds000030 run sub-10227.
This calculation measures how removal of STOP responses before their positive recorded delays changes integration-method stop-signal reaction time (SSRT) estimates in OpenNeuro ds000030 event tables. The analyzed files came from Git commit 4070b6eea231517bfeff42527a46d9d166ac4e13; the report does not establish that this commit is the DOI-named dataset release. In the primary 241-run sample, the strict zero-millisecond filter removed 33 records in 29 runs. With the rank quantile and hybrid delay, SSRT increased in 14 runs and decreased in 15; the median absolute change among affected runs was 2.866950 ms (range, −13.300115 to +4.956962 ms). Across all 241 runs, the mean signed change was −0.093023 ms. In run sub-10227, removal of one record increased the estimate by 4.956962 ms with the hybrid delay, by 10.501317 ms with recorded delays, and decreased it by 7.142009 ms with planned delays. These recorded-field calculations do not establish physical sound onset, a valid correction threshold, biological SSRT, or a recommendation to remove responses. They show score sensitivity to the filter and delay definition.
stop-signal task · stop-signal reaction time · reaction time · premature responses · recorded delay · planned delay · integration method · quantile · sensitivity analysis · OpenNeuro ds000030
References
5- usesZero stop-delay entries raised a fixed integration estimate by 30.520 ms on average in 266 ds000030 scanner runs sci:sha256:b1a80a0a8a719aca194c497ae3cd38f518c795d6f71c100c053ab4c99a1f0e16
The calculation uses this publication's three delay definitions, GO omission replacement, and baseline sample rules. They specify the 241-run primary sample and its R, H, and L score comparisons.
- Responses preceding positive stop-delay logs in ds000030: a field-ordering audit sci:sha256:2b7c9038454125209c9d265ae90fe22cc825c3bb0369b8911148d78aa8d7159c
[Legacy relation: reproduces] The new source calculation agrees on all 37 selected STOP rows across ten source fields and on eight strict timing-threshold counts. The archive supplied the 266 event paths and comparison rows. This relation is limited to these executed comparisons. It does not reproduce physical sound onset, earlier bootstrap results, or prior code.
- usesRemoval of one STOP record changes H SSRT by at least 10 ms in 37 of 122 selected ds000030 controls with the rank rule. sci:sha256:f5f62b50e884281b1d42b16ab54e9665e748cd6fba28157d895966c868990043
The calculation uses the earlier single-STOP-record removal concept and comparison of rank and linear quantile rules. The present calculation applies the recorded-delay filter to the full event-file sample. It does not claim that the removal concept is new.
- supportsdoi:10.1038/sdata.2016.110
The cited paper supplies the stop-signal task description, trial counts, adaptive delay sequences, and delay step size summarized in the publication.
- supportsdoi:10.7554/eLife.46323
The cited guide supplies the integration-method recommendations and treatment of premature failed STOP responses and GO omissions discussed in the publication.
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