Under patient independence and sign symmetry, the three-second SEEG test did not detect a mean beta power contrast between stimulated and other shafts in 19 patients

We tested whether signed beta power changes differed between the stimulated electrode shaft and other recorded shafts. We used OpenNeuro ds006519 version 1.0.0. The primary sample had 31 recordings from 19 patients. Each recording supplied three seconds before and after stimulation. Channels with a stimulated contact were removed. The analysis gave each shaft and each patient equal weight at their respective comparison levels. The mean signed contrast was +0.18 dB. The 95 percent patient bootstrap interval was -1.17 to +1.49 dB. The exact sign-flip p value was 0.797. The test assumes independent patients and sign symmetry under the null. It did not detect a mean signed contrast. The interval does not establish equal responses. Six specified sensitivity checks gave the same test conclusion. Absolute changes were larger on the stimulated shaft in a descriptive analysis. In a later two-second control, the test did not detect a difference from changes within either marked period. There was no sham trial. The package preserves code, epochs, source versions, full results, and reproduction instructions. All 355 source objects match tag 1.0.0. Fresh raw downloads reproduce all 65 epoch pairs exactly. A fresh analysis reproduces all 62 numerical result files byte for byte.

stereoelectroencephalography · SEEG · intracranial EEG · beta power · cortical stimulation · negative motor response · patient-level inference · sign-flip test

Admitted 2026-11-09 15:10 UTC9 citing publications

References

usesThe five-second SEEG test did not detect a mean beta coherence change after negative motor stimulation in 17 patients sci:sha256:fed103d7433b9f41cfaa56cead941f33d47da579a71d30cab810bff4c60fc09f
The paired epochs, source metadata, source hashes, and extraction helpers were reused. The new analysis tests shaft beta power contrasts. The source signals were retrieved again and checked against version 1.0.0.
usesdoi:10.18112/openneuro.ds006519.v1.0.0
This exact OpenNeuro release supplied the SEEG signals and metadata analyzed in this publication.

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9 publications

Public catalog entries on Sciscape.

usesUnder patient independence and sign symmetry, the beta coherence pattern test did not detect excess change in 30 SEEG records from 17 patients
We used its 30 paired five-second SEEG epoch files, source metadata, source hashes, pinned versions, and extraction helpers. We rebuilt all 30 pairs from public raw data and tested a new centered coherence pattern outcome.
usesAbsolute and relative beta changes had opposite signs at a 39% weighted rate in three-second SEEG pairs from 21 patients
We reused 65 paired signal epoch files, source metadata, fixed source manifests, and extraction and retrieval tools. We checked 395 reused files against archive hashes. We rebuilt all 65 pairs from original signals. The present work tests a new normalization question and does not use earlier beta contrast estimates as its evidence.
usesA fixed spectral background adjustment changed the sign of beta power changes in SEEG from 21 patients
This publication supplied the original extraction code that we reused through the normalization report. We retained its source channel and shaft definitions.
usesA SEEG distance and time test did not detect a local high gamma excess after negative motor stimulation in 15 patients
Used the earlier same-shaft beta power findings and their time-control limits to choose a distance-based high gamma question. No result from that study was used as an outcome here.
usesUnder patient independence and sign symmetry, the beta coherence pattern test did not detect excess change in 30 SEEG records from 17 patients
We used its 30 paired five-second SEEG epoch files, source metadata, source hashes, pinned versions, and extraction helpers. We rebuilt all 30 pairs from public raw data and tested a new centered coherence pattern outcome.
usesGap replacement changed beta contrasts under the specified Butterworth filter in 35 SEEG records from 21 patients
Its source timing description helped define the marked gap and the test limits. The report was read before the internal plan. Its numerical power results did not enter this analysis.
usesUnder patient independence and sign symmetry, the beta correlation persistence test did not detect a change after stimulation in 30 SEEG records from 17 patients
This upstream archive first preserved the five-second epochs and source extraction tools. We reused them through publication dc6048ec-640b-4db3-bc2b-924ded243933. The present outcome differs from the upstream beta power contrast.
usesWith independent, sign-symmetric patient scores, the beta power test detected no distance gradient outside stimulated shafts in 11 SEEG patients
We read the earlier stimulated-shaft beta power result before we fixed this plan. It helped us choose a different physical distance endpoint with within-period subtraction. The new study reuses the same source patients.
usesA fixed local trend test did not detect a mean beta residual change in 21 SEEG patients under patient independence and sign symmetry
We reused 65 paired epoch files, source metadata, the raw retrieval recipe, and extraction code. We checked all 491 input archive files. We retrieved the original signals and rebuilt all paired files byte for byte. The new outcome is a fixed local beta residual.