A voltage sum lowered mean task state Brier error against pair deletion in eight SEEG records with available streams and matched contact noise
We tested a backup reader for known contact noise in eight public SEEG recordings from OpenNeuro ds004473 version 1.0.2. The test used 2,014 selected trials and 22 internal contact cases. A signed sum of the two affected voltage signals gave lower mean Brier error than removal of both signals: 0.185386 against 0.188189. Seven people had lower error. The sum removed matched additive contact noise before the band power calculation. Adding the two powers alone did not retain that noise cancellation. At ten times early signal root mean square, a 10 percent difference between noise gains raised bypass error to 0.240527. The result needs a known contact, available signals, common timing, and matched noise paths. It is an offline result in a reused clinical cohort. The package has exact input windows, public source records, all saved readers and test probabilities, source code, four figures, and repeat checks.
stereoelectroencephalography · brain-computer interface · bipolar signals · contact noise · band power · Brier error · ridge logistic regression
References
6- usesContact mask training gave no clear mean Brier error gain after two simulated contact losses in eight SEEG recordings sci:sha256:8e1cbb0e4429745eec9c8a8a899dbdd59241d92b2283f20039233d4035ca2bb6
This work supplied the exact digital SEEG windows, retained trials, selected pairs, source records, EDF helper, and retrieval code. Its Newton fit supplied the basis for the new backup-reader fits. We kept the source selection and added new voltage maps, power features, fault controls, and later-trial scores.
- supersedesA voltage sum lowered task-state Brier error in eight selected SEEG records sci:sha256:accccebb5b70353accb64309898fcfeed6f1db16fbfde37c035928dcba357890
This package corrects the file-hash check after sci retrieval. The check excludes the supplemental metadata folder added by sci fetch. The scientific data, fitted readers, test scores, and figures are the same as in the first package.
- usesBipolar bypass raised mean site accuracy from 28.4% to 31.9% at 20–100 ms after known simulated contact loss in five SEEG sessions with unchanged surviving voltages sci:sha256:909d106352dff262104732a7de573ab7f23dd4fed3a647b1aae6021979d02b41
This prior work supplied the signed contact bypass rule and its linear observable-space result. We tested that established voltage rule with log band power and behavioral task-state probabilities in ds004473. We used no voltage arrays or fitted readers from that work.
- usesSurviving contrasts raised mean 20–100 ms condition accuracy from 71.24% to 73.15% after known simulated contact loss in eight SEEG patients with unchanged surviving signals sci:sha256:2905f9838c86b2e0f0381acfd14f143db26317aaa145dcaa68f18e5976a8b561
This prior test of surviving contact contrasts in stimulation-condition reading informed the transfer question. The present work tests a different dataset and nonlinear band-power features. It uses no fitted parameters or voltage arrays from that prior test.
- usesdoi:10.18112/openneuro.ds004473.v1.0.2
The analysis uses selected digital voltage windows from OpenNeuro ds004473 version 1.0.2.
- doi:10.1088/1741-2552%2Facae0a
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