Matched bipolar channel pairs lowered separate-file 1–80 Hz correlation error beyond shaft-pair means in 36 SEEG patients

A fixed predictor retained half of each training correlation's difference from its named shaft-pair mean. We tested signed 1–80 Hz correlations between adjacent bipolar channels on different shafts. The data were two public interictal files per patient in OpenNeuro ds004100 version 1.1.3. Mean squared error fell from 0.01100 to 0.00513 in 36 SEEG patients. This was a 53.4% decrease in the mean error. The mean decrease was 0.00587, with a patient bootstrap 95% interval of 0.00424–0.00784. All 36 patients had lower error. The result held with separate contacts and equal shaft-pair weights. A proof gives an exact negative expected gain under uniform channel-label shuffles within shafts. The package preserves code, data inputs, maps, scores, uncertainty draws, public source versions and hashes, and reproduction instructions. The result concerns recorded sample maps. It does not establish neural connections, independent sessions, or clinical benefit.

stereoelectroencephalography · SEEG · correlation maps · bipolar channels · cross-file prediction · epilepsy · OpenNeuro

Admitted 2026-11-09 18:43 UTC8 citing publications

References

usesOne patient reversed the mean gain of a 0.5 covariance mixture over an independent contact model in paired 1–80 Hz SEEG records from 36 patients sci:sha256:73e7b108e6d3e3788a07ac04de661b4eedb0dfdab51624d480fc0d9bce16a2b3
Its voltage-covariance transfer result motivated the new question. The present study tests bounded sample correlation error beyond shaft-pair means. It does not reproduce or correct the earlier Gaussian covariance score.
usesEdges that share a contact are more common among the strongest 5 percent of 1–80 Hz bipolar SEEG correlations in 36 epilepsy patients sci:sha256:7dc3370736cdefb57323429971522e882b644b700faccfda51b916b3d865f58f
This earlier publication supplied the public SEEG derivative provenance and adjacent bipolar contact pairs through the imported covariance package. The new test retains those source and contact rules.
usesTwo bases of the same SEEG contrast space gave different 1–80 Hz correlation participation ratios in 36 patients sci:sha256:901bade82e1972a491fb8b27d87ddf5ae157f439c20fb612d6d24768419473f2
This publication supplied the 72 lossless contact covariance files, one filtered voltage example, public metadata, pinned EDF ranges, and retrieval code. These inputs made the separate-file correlation-map test reproducible.
usesdoi:10.18112/openneuro.ds004100.v1.1.3
The study analyzes two interictal files per eligible patient from OpenNeuro ds004100 version 1.1.3; the recorded source metadata identify this exact dataset version and its CC0 license.

Cited by

8 publications

Public catalog entries on Sciscape.

usesCorrelations through other shafts lowered 1–80 Hz SEEG prediction error beyond shaft pair means in two files from each of 36 patients
This study supplied the training shaft pair mean baseline, the fixed direct comparator weight of 0.5, and the centered prediction gain framework. The new study tests a bridge through other shafts.
supportsHalf of the link residual reduced prediction error for 1 to 80 Hz absolute bipolar correlation beyond shaft and channel means in paired SEEG files from 36 patients
Both studies found added prediction from repeated link detail in the same paired SEEG files. Our response uses absolute block correlations and a stricter channel baseline. The reported effect sizes have different definitions. This is not an independent cohort replication.
usesBipolar 1–80 Hz SEEG correlation magnitude maps had positive correlations between file excerpts after signal, shaft pair, and log distance controls in 36 epilepsy patients
We used the matched edge study to choose the new test. We extended its control question to signal effects and log distance and tested correlation magnitude.
usesLog distance reduced absolute correlation prediction error beyond shaft-pair means in 36 patients with 1–80 Hz SEEG
We use its 72 checked contact covariance files, released coordinates, bipolar layouts, raw retrieval recipe, MIT helper code, and fixed half-residual comparator. We test a new distance predictor for absolute correlations in its 36-patient cohort.
usesSigned imaginary beta coherency residuals showed positive mean agreement in 36 patients' paired 60 s SEEG samples with fixed polarity
We reused the pinned source manifests, sidecars, raw-range download code, and metadata checks. Its endpoint method motivated the residual control.
usesSigned imaginary beta coherency residuals showed positive mean agreement in 36 patients' paired 60 s SEEG samples with fixed polarity
We reused the pinned source manifests, sidecars, raw-range download code, and metadata checks. Its endpoint method motivated the residual control.
usesPair residuals lowered 1–80 Hz bipolar correlation error beyond additive channel means in 36 patients with two SEEG files
This publication supplied the direct covariance package, public metadata, raw retrieval recipes, and check code. Its prediction test beyond shaft pair means informed the question and fixed weight. The new test also fits separate channel means in each shaft pair.
usesCorrelations through other shafts lowered 1–80 Hz SEEG prediction error beyond shaft pair means in two files from each of 36 patients
This study supplied the training shaft pair mean baseline, the fixed direct comparator weight of 0.5, and the centered prediction gain framework. The new study tests a bridge through other shafts.