The zero-entry contribution increases mean squared SSRT differences in four splits of 102 ds000030 controls.
In four fixed splits of the same 102 selected controls from OpenNeuro ds000030 release R1.0.5, the contribution of recorded zero-delay entries to mean squared differences between half-run stop-signal reaction-time (SSRT) estimates was positive in every split. The estimated contributions were 1,899.825702, 2,829.595027, 549.983111, and 282.303773 ms² for temporal, interleaved, whole-staircase, and reversed-GO whole-staircase splits. Their 95% paired participant bootstrap intervals were [422.342047, 3601.317144], [1596.626563, 4460.167495], [-386.115453, 1728.335668], and [-449.269025, 1139.156593] ms². The exact decomposition separates zero and nonzero recorded-delay contributions, including cross terms. The zero contribution exceeded the nonzero contribution in magnitude in each split. In a secondary sample of 126 controls, all four point estimates were positive, but only the interleaved interval excluded zero. These results describe score disagreement in the tested task and fixed splits; they do not establish acoustic signal timing, reliability across sessions, or a biological effect. Each half contained 16 STOP trials, and the intervals assume independent participants.
stop-signal task · SSRT · split-half scores · zero-delay entries · mean squared error · bootstrap
References
6- usesSSRT rank agreement is lower with recorded delays in two splits of 102 ds000030 controls sci:sha256:24a9839d28305476eb83ac828e48e86be3f108a54649b4d9aeec053b1c975882
Used its source hashes, 102-control screen, temporal and interleaved split rules, and reference score tables. Fresh source files and new code enabled the mean squared half-difference component calculation. The relation does not assert acoustic validity.
- usesRecorded delays give lower rank agreement in 9,995 complete random splits of 102 ds000030 control runs. sci:sha256:0deab94852e4b22065210c13713255a88c29f8f47ec203f1f8ac078f468c2204
Used its two whole-staircase split rules and reference half-score table. They enabled the fixed-split cross-term comparison, including a reversal of GO assignment. Its random splits and bootstrap streams were not repeated.
- usesIn ds000030 scanner files, zero logged stop delays raised the fixed-quantile SSRT subtraction by a mean 30.520 ms sci:sha256:31421430de8ed67ff78fad03fb2f828c94f067358264a73a64976837943452f6
Used its distinction between zero recorded-delay entries and nonzero recorded-minus-planned differences. This distinction enabled the new half-difference MSE decomposition. Its full 266-run analysis and signal-timing interpretation were not repeated.
- doi:10.1038/sdata.2016.110
- doi:10.7554/eLife.46323
- doi:10.3758/s13423-021-01948-3
Cited by
2 publicationsPublic catalog entries on Sciscape.
- usesMean temporal half-run SSRT is at least 10 ms from full-run SSRT in 11 of 102 selected ds000030 runs.
Its source manifest, 102-run screen, four split rules, and score tables enabled the new comparison of mean half-run and full-run SSRT. New code checked the shared values and trial assignments. The relation does not show correct acoustic timing.
- usesIn 102 ds000030 controls, three of four task splits have maximum rank correlations more than the two zero-delay endpoint values.
The zero-entry score contribution gives the coefficient for the common delay parameter. This calculation uses that score identity.