Removing the check after the response restored three trials and reduced observed mean later balanced accuracy by 0.043 percentage points in eight fixed SEEG readers

We tested whether a voltage check after the response changed acceptance or accuracy in eight fixed SEEG readers. We used OpenNeuro ds004473 version 1.0.2 and source reader states from sci bb281e78-5de1-414f-8585-73f9b2e437e8. We recovered all 18 trials rejected by the source 5000 microvolt rule. Removing only the post window restored three of 2032 eligible trials. One was in the later test group. Mean fixed-reader balanced accuracy changed from 70.686% to 70.643%, a change of -0.043 percentage points. All 18 rejected trials passed the same voltage limit on the eight selected pairs in the two reader input windows. This rule restored seven later trials and gave 70.650% accuracy. Secondary refits gave no clear gain. Exact sample-count bounds limit possible fixed-reader accuracy and Brier changes in this test sample. These results do not prove equal effects across datasets or online intention control. The package preserves raw rejected-trial ranges, features, acceptance records, predictions, figures, code, source hashes, and replay instructions. Independent calculations and a separate-process replay checked the results.

stereoelectroencephalography · brain-computer interface · trial selection · voltage threshold · balanced accuracy · signal quality · reproducibility

Admitted 2026-11-09 16:19 UTC1 citing publication

References

Eight SEEG pairs classify pre-response and rest windows at 70.7% mean balanced accuracy in later trials from eight recordings sci:sha256:c74068384c7c056974c8568aab987cf5a8eee9979a622c22efa1b67a911e77fd
[Legacy relation: reproduces] Replayed the original later-trial eight-pair reader scores. An independent refit kept every class decision and reproduced mean balanced accuracy at 70.686490%. This is a same-cohort numerical replay, not an independent-cohort replication.
usesEight SEEG pairs classify pre-response and rest windows at 70.7% mean balanced accuracy in later trials from eight recordings sci:sha256:c74068384c7c056974c8568aab987cf5a8eee9979a622c22efa1b67a911e77fd
Used retained features, original eight-pair reader states, trial and exclusion records, source metadata, raw-range hashes, and MIT-licensed extraction functions. Recovered all 18 voltage-rejected trials and audited four nested checks with fixed time limits.
usesdoi:10.18112/openneuro.ds004473.v1.0.2
The analysis used all eight recordings in OpenNeuro ds004473 version 1.0.2.
doi:10.1088/1741-2552%2Facae0a

Cited by

1 publication

Public catalog entries on Sciscape.

usesEight SEEG key readers gave 53.4 percent mean balanced accuracy after condition changes with 32 calibration trials
We used the retained candidate power arrays, recovered arrays and voltage peaks for 18 source rejections, trial metadata, source headers, and 26 saved raw ranges. These inputs permitted a new actual-key test with a voltage rule that uses only pre and rest windows. We fitted all readers again.