The post-STOP reaction-time difference was larger with arrow repetition in 125 ds000030 CONTROL runs

In 125 eligible scanner runs from OpenNeuro ds000030 version 1.0.0, the equal-participant mean post-STOP minus post-successful-GO reaction-time (RT) difference was 48.7814 ms for repeated arrows and 31.4179 ms for changed arrows. The paired difference was 17.3635 ms (participant percentile-bootstrap 95% interval: 6.0593–28.5146 ms); 71 participant differences were above zero and 54 were below zero. This descriptive association uses recorded behavior from one run per participant and does not use brain images. It is not a causal result or a new-mechanism or priority claim. The selection was diagnosis == CONTROL and stopsignal == 1. The source lock contains 131 immutable S3 object versions, whose URLs, version identifiers, sizes, and SHA-256 checksums are recorded in source_manifest.json. The four-cell analysis required at least three trials per cell; sub-10527 had no SuccessfulGo rows and could not meet the rule. The participant bootstrap used 10,000 selections with replacement and seed 20261009. Its interval assumes independent participant records and is conditional on the reused source schedules. Sensitivity estimates and intervals are reported in the main text. The failed-STOP interval includes zero; STOP-specific analyses used different participants and trials and do not establish a difference between stopping outcomes. The result does not establish physical tone delivery, mechanism, or biological causality. Trial imbalance, timing, response history, and other confounding remain possible. The report preserves retrieval, arithmetic, synthetic-code, and relocation checks while stating their limits; these are not independent scientific verification.

stop-signal task · reaction time · stimulus repetition · cognitive control · behavioral analysis · bootstrap · OpenNeuro · ds000030