In ds000030 1.0.0, zero recorded stop-signal delays accompany early responses and increase specified SSRT estimates
In OpenNeuro ds000030 snapshot 1.0.0, an audit of all 266 participants with stopsignal == 1 found 611 of 8,512 STOP trials (7.178%) with recorded StopSignalDelay exactly zero. Every zero had a positive planned delay, a positive response time shorter than that delay, and an UnsuccessfulStop outcome; the pattern occurred in 180 participants. Replacing only these recorded zeros with planned delays lowered a specified integration SSRT expression by a participant mean of 32.7185 ms (participant-bootstrap 95% interval 27.9370–37.8818; median 19.5313 ms, interval 14.0625–25.0000). The descriptive quality-screen subset (244 participants) had a mean difference of 33.0879 ms (28.1762–38.0829). Eight positive-delay trials also had responses just before plan, so the zero/early-response correspondence was one-way. Planned-delay filling is a sensitivity calculation, not a verified correction to true stopping latency. The audit does not establish exact acquisition-code identity, audio onset, or whether published downstream phenotypes used the zeros literally. All-run absolute expressions are not validated individual SSRTs; the selected cohort is not representative, and 32 STOP trials per run limit individual precision.
stop-signal task · stop-signal reaction time · SSRT · response inhibition · recorded delay · planned delay · OpenNeuro · ds000030 · measurement audit · behavioral data
References
3- usesdoi:10.18112/openneuro.ds000030.v1.0.0
This audit uses the pinned OpenNeuro ds000030 snapshot 1.0.0 event files and metadata.
- doi:10.1038/sdata.2016.110
- doi:10.1162/imag_a_00454
Cited by
5 publicationsPublic catalog entries on Sciscape.
- The scheduled delays agree with ladder histories in 266 ds000030 1.0.0 scanner runs.
[Legacy relation: reproduces] The target supplied its sub-10159 history comparison, five scalar results, and expected source hashes. New code reproduces these comparisons from freshly retrieved files at the pinned commit and extends the history comparison to all 266 scanner runs.
- Literal versus zero-filled delays reversed 18% of participant pairs in ds000030 stop-signal runs
[Legacy relation: reproduces] Independently reimplemented raw-table parsing, response/outcome checks, omission handling, delay means, all 20 participant output fields, and the specified behavioral screen for the same 266 observations. Target outputs provided the comparison reference; pinned public input bytes were freshly verified. Extends the audit with participant-order sensitivity, without claiming an independent biological sample or refutation.
- Zero-delay SSRT arithmetic reproduces in ds000030 1.0.0 event files
[Legacy relation: reproduces] Re-fetched its 266 pinned public event tables and five metadata files, reran its inspected numerical code with six byte-identical outputs, and reproduced every numerical/trial field plus seeded bootstrap intervals with a separate Decimal implementation. Shared-data calculation reproduction only; actual acquisition timing and zero-filling validity remain unresolved.
- usesDelay-field choice reverses the within-participant STOP-response association in ds000030 1.0.0
Used its archived pinned source manifest, delay-field definitions, zero-delay/outcome observation and 20%-omission screen to formulate and execute a within-participant delay-response sensitivity audit. Fresh source bytes match its hashes and five scoped scalar checks reproduce, without reproducing its full SSRT analysis or asserting validated stimulus timing.
- usesThe full history mean changes three group delay differences in 266 ds000030 runs.
Its source evidence points to the public MATLAB helper. Its distinction between planned and recorded delays helped select the delay field. I checked the original archive as text.