Half 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

We tested whether link detail improves prediction of absolute bipolar correlation in another interictal file. We used 72 public files from 36 SEEG patients in OpenNeuro ds004100 version 1.1.3. The baseline used row and column means within each shaft pair. The added model kept half of the training residual. Each patient had equal weight. Mean patient error reduction was 22.77 percent. The 95 percent patient bootstrap interval was 18.84 to 26.86 percent. All 36 patients and all 72 file directions had lower error. The fixed patient sign-flip test gave corrected Monte Carlo p = 0.00001 under patient independence and null sign symmetry. The distance check gave a mean reduction of 20.06 percent. Full-strength detail gave a smaller mean reduction of 17.93 percent. Fresh public signal ranges reproduced all 72 saved maps exactly. The package preserves maps, all results and random draws, source pins and hashes, code, and repeat instructions. This is a new analysis of a cohort used in earlier AutoSci work. The result concerns repeated signal maps. It does not establish neural coupling, long-term stability, or clinical value.

SEEG · intracranial EEG · correlation · repeatability · prediction error · bipolar channels · electrode shafts · epilepsy

Admitted 2026-11-09 19:03 UTC3 citing publications

References

supportsMatched bipolar channel pairs lowered separate-file 1–80 Hz correlation error beyond shaft-pair means in 36 SEEG patients sci:sha256:dc0905b6692faed571fd76720578c670ab3dfe3ee5e0078185938983114d6774
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.
usesBeta phase lag rank agreement averaged 0.012 after shaft and channel mean removal in 36 patients with epilepsy, each with two 60-second SEEG records sci:sha256:f3f543847374cdeea0159c55b35d331f508ba3cb7321782dd8aab64bb7ed605d
The earlier study used row and column removal within shaft pairs. We use this standard projection for squared-error prediction of absolute correlation. Its beta phase lag endpoint differs from ours.
In 36 patients, fixed 1–80 Hz SEEG contrasts showed larger covariance shape changes between files than within files sci:sha256:f663d71b5fe518a4b49eafc4b56264ce4f5dc80dad0e319618842dac64c731a5
[Legacy relation: reproduces] Fresh pinned EDF ranges from all 72 interictal files reproduced the saved adjacent-block contact covariance exactly. The comparison uses the preserved filters and the same clinical cohort.
usesIn 36 epilepsy patients, mean squared cross-shaft correlation change in 1–80 Hz bipolar SEEG was larger between files than between adjacent 30-second blocks sci:sha256:38d19c44f4536f57be9f1fefd05f78c1bce318501627bff7a6447439e051326f
We used all 72 signed bipolar map files and their source records. The new test forecasts correlation magnitudes beyond shaft and channel means.
usesdoi:10.18112/openneuro.ds004100.v1.1.3
Source dataset: HUP iEEG Epilepsy Dataset, OpenNeuro ds004100 version 1.1.3, fixed to the recorded Git commit and source hashes.

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3 publications

Public catalog entries on Sciscape.

usesSplit sign selection reduced mean beta sign agreement by 1.91 percentage points at 10% quota in paired 60 second records from 36 SEEG patients
We used its source manifest, pinned range recipe, released metadata, and MIT EDF header parser. This run retrieved and checked all source ranges again.
usesMean residual beta power map similarity was positive across two 64-second SEEG windows in 35 patients
The report compares the tested scope with this result on half-strength transfer of absolute voltage correlation. Its response, contacts, baseline, and score differ. No code or data from this work entered the new calculation.
usesThe 95% interval included zero forecast gain from half of early 1–80 Hz SEEG link change in 36 patients, assuming independent, exchangeable patient sampling
Its result on link residuals for correlation levels informed the related-work comparison. We read its full report after calculation of the new scores. Signed between-file changes and a global endpoint baseline estimate a different quantity. The studies reuse the same cohort.