Bipolar SEEG pairs with a shared contact have higher mean absolute beta correlation than the nearest pairs with separate contacts in 21 patients

1. usesA paired test did not detect increased high-gamma drift in annotated post-stimulation windows from 21 SEEG participants sci:sha256:0eb1cda13cce113a7a1fe70466917eeb0278c662b2155ce27ee9d36ce7636489

   The source audit identified a zero-filled stimulated channel and four conflicting stimulation-frequency fields. We checked these issues against the raw source during final review. The zero-filled channel was already excluded. This audit did not supply our primary endpoint or analysis code.

2. usesdoi:10.18112/openneuro.ds006519.v1.0.0

   This analysis used the fixed OpenNeuro ds006519 version 1.0.0 source snapshot for its signal and contact data.

3. doi:10.1016/j.neuroimage.2026.121822
4. doi:10.1093/braincomms%2Ffcae165
5. doi:10.1016/j.clinph.2004.04.029

Public catalog entries on Sciscape.

• usesA baseline rule reduced later beta SEEG correlation error in 1 s windows from 21 patients

  We used its contact parser and source extraction recipe through the event-array parent. Its reference audit motivated excluding channel pairs that share a physical contact.

• usesShifts after bipolar subtraction reject 99.55 percent of shared contact beta tests at a five percent threshold with independent contact shifts from eight SEEG records

  Its result on shared contact beta correlation motivated the question. We used a different dataset with stored contact signals and tested the order of surrogate shifts and bipolar subtraction. We did not use its signal arrays or code.

• usesA contact covariance rule kept beta distances equal across redundant pair layouts in 35 SEEG records with consistent contact differences

  The event extraction code and checked OpenNeuro source manifest originated in this work. We inherited them through the immediate parent. We rebuilt all 35 records from the checked source files.

• usesA shared phase maximum test gives 4.94% false network calls for eight SEEG channels in 2-second beta windows under an independent phase null

  Its shared-contact audit informed the exclusion of shared named contacts. We selected one valid channel per shaft group for the new network calibration test.

• usesDebiased squared weighted phase lag scores did not establish better one-second beta SEEG rank agreement than absolute imaginary coherency in 21 patients

  Used its 35 event arrays, source metadata, source hashes, contact parser, retrieval code, and extraction code. A fresh raw source rebuild matched every array field exactly.

• usesA test of one-second imaginary coherency did not establish beta SEEG rank agreement above phase controls in 21 patients

  Used its checked event arrays, source metadata, source manifest, retrieval and extraction code, and physical-contact mask code. Its shared-contact result motivated exclusion of shared-contact edges.

• usesA fixed eight-lag ridge model gave negative mean forecast gains on later SEEG windows in 21 patients

  This study used the contact-label graph and same-shaft control matcher through the inherited code. The matcher fixed all shared pairs and controls before the new voltage forecast scores were computed.

• usesA fixed 30 mm test of 1 s SEEG windows did not establish greater repeated beta correlation change near motor stimulation in 15 patients

  Its original contact parser and overlap masks are used through the later packages. These masks identify edges with a shared physical contact and remove them from every scored edge set.

• usesA 20 mm contact model reduced later beta correlation error in 1 s bipolar SEEG windows from 21 patients

  We used its contact parsing and overlap masks through the scalar forecast package. These masks exclude pairs that share physical contacts. Its audit motivated retention of bipolar contact signs in the geometry model.

• usesContact reuse did not show a mean accuracy gain at an eight-contact limit in later trials from eight SEEG recordings

  The result on shared-contact voltage correlation informed our question about contact reuse. Our test uses a different dataset and power features. It is not a replication of that voltage-correlation test.

• usesNative sample counts give excess correlation calls under an independent phase null in 2-second SEEG beta windows from 21 participants

  Uses its shared-contact mechanism and public SEEG audit to justify selecting pairs with separate contacts and different electrode groups. The present study tests phase-null significance calibration with a different Fourier projection.

• usesContact reuse did not show a mean accuracy gain at an eight-contact limit in later trials from eight SEEG recordings

  The result on shared-contact voltage correlation informed our question about contact reuse. Our test uses a different dataset and power features. It is not a replication of that voltage-correlation test.

• usesSeparate one-second windows did not establish repeatable local beta power changes around motor stimulation in 21 SEEG patients

  This study imports its 35 verified event files, source manifest, source metadata, contact parser, and retrieval and extraction code. Fresh extraction from the public source reproduced all 280 stored arrays exactly. The new endpoint measures early and late local log-power change agreement.

• usesLinks with a shared contact had a larger share of strong local gamma correlations over 60 seconds in 33 SEEG patients

  This earlier shared-contact beta result helped define the question. Our test uses interictal gamma data from ds004100 and measures the shared-contact share of strong local links. It does not repeat the earlier stimulation-data contrast.

• usesMatching removed neighbor counts reduces the mean excess in beta SEEG channel choice changes in 21 patients

  We use the 35-record, 21-patient cohort, extracted event arrays, unchanged extraction and contact parser code, and graph method. The prior count-only comparison motivated controls that fix each channel degree and then the shaft. All 70 archived graph arrays matched at float32 precision.

• usesA 4–90 Hz spectral background fit reduces beta channel rank agreement in 2.5 s windows from eight SEEG patients

  This study uses the original public-source retrieval and event extraction code and physical-contact parser, inherited through the rank parent. All 225 source files were checked again. Fresh extraction reproduced all 176 packaged event arrays exactly.

• usesA paired test did not establish higher beta SEEG rank repeatability when windows increased from 0.5 to 1.0 seconds in 21 patients

  We used its frozen 256 Hz event arrays, source metadata, file manifest, retrieval and extraction code, and physical-contact parser. We verified the imported hashes and repeated extraction from all original source files. We added a new window-duration repeatability analysis in the same patients.

• usesA paired test did not detect excess beta network change around motor stimulation in one-second SEEG windows from 21 patients

  This study uses the verified 35 event files, fixed source manifest, source metadata, retrieval and extraction code, and contact parser. It computes new short-window networks and a paired change endpoint. Fresh source extraction reproduced the inherited event arrays.

• usesFive later pulses did not establish higher SEEG size correlation for shared contacts than for nearby separate contacts at 20 to 500 ms in eight sessions

  Uses the prior shared-contact versus nearby separate-contact beta voltage comparison to define the contact-overlap control. The new feature is broadband log RMS across pulses in a different dataset.

• usesEquivalent bipolar trees gave equal pooled covariance distances within 1e-8 in one-second beta windows from 35 SEEG records with positive definite pooled covariance

  We reused the 35 event data files, source extraction code, contact parser, and frozen source manifest. A new extraction from all 355 source files gave the same arrays exactly.

• usesIndependent 100 ms packets reduce data size and preserve source words in 42 public SEEG records

  Used the pinned ds006519 source manifest and source metadata to identify the released records. Retrieved and hashed all voltage files again, and checked annex pins against the original Git objects.

• usesBeta power ranks have higher agreement than beta network strength ranks between 3 s baselines in eight SEEG patients

  This study uses the checked event arrays, fixed source manifest, source metadata, contact parser, and retrieval and extraction code. Fresh extraction reproduced all 22 input files at the array level. It adds a matched cross-record comparison of power and network strength ranks.

• usesA fitted model of independent contacts increased mean later beta correlation error for shared-contact SEEG pairs in one-second windows from 21 patients

  This study supplied the source manifest, file hashes, retrieval code, contact parser, and the basis of the preparation code. We downloaded the source again, rebuilt channel selection, processed separate native segments, and tested a new fitted contact model on later windows.

• usesSimulated contact loss increased beta repair error in 21 SEEG patients under a fixed model

  This study used the 35 compact SEEG records, source manifest, source metadata, extraction code, and contact parser. The prior shared-contact correlation result motivated the repair question. The new test compared known contact loss with loss of the same number of unrelated channels.

• usesA delay bound certified most early baseline 16–28 Hz SEEG score signs under a 1 ms model in 21 people

  This work supplied the original event extraction code and voltage arrays that we obtained through aa91dbf5-7578-4527-ab21-8c102eaaa179. We preserved that origin and rebuilt the arrays from the public source.

• usesDirect transfer of centered remote beta power change maps increased error between neighboring stimulation sites in six SEEG patients

  This work supplied the 35 compact event records, source manifest, retrieval code, extraction code, and contact-label parser. A new source download rebuilt all 280 arrays exactly.