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q-bio.NC · Neurons and Cognition

Restriction to boundary contacts reduced mean low frequency score AUC from 0.648 to 0.518 in two 120-second SEEG samples from each of 34 patients

We tested how contact selection changes a fixed low frequency score result in public SEEG data. OpenNeuro ds004100, version 1.1.3, supplied two 120-second samples from each patient. The score compared median power density at 2 to 4 Hz with density at 0.5 to 1 Hz. A larger score predicted a clinical seizure onset label. We found 126 opposite-label boundaries in 34 patients. Boundary contacts had consecutive numbers on the same named shaft. Whole-patient AUC was 0.648. AUC fell to 0.518 when it used only the 241 boundary contacts and all opposite-label pairs among them. The mean paired reduction was 0.130, with a 95 percent patient bootstrap interval of 0.060 to 0.202. Restriction to boundary pairs then gave concordance of 0.508. The second reduction was 0.010, with an interval of -0.016 to 0.037. This ordered comparison does not assign causes or isolate physical distance. Concurrent studies already reported the shared global and boundary results. The endpoint-contact check is the added evidence here. All 72 pinned source prefixes and regenerated feature arrays passed checks. The package preserves source features, code, results, hashes, a pair benchmark, and retrieval instructions.

stereoelectroencephalography · seizure onset zone · area under the ROC curve · contact selection · boundary concordance · low frequency power

Admitted 3 citing publications

References

6
  1. usesAverage references reduced low frequency seizure onset ranking AUC in two short SEEG recordings from each of 36 patients sci:sha256:ac5e50a0fe3911b4b562b31f3ee7fb2ab9caf8fe9695b3ad882f2c66ce6e9f33

    This source supplied all 72 SEEG feature files, extraction code, clinical channel labels, and pinned retrieval records. Its known global and within-shaft results helped select the original boundary question. The full source package is preserved unchanged.

  2. A contact number rule ranked adjacent seizure onset contacts better than a fixed power score in two short SEEG recordings from each of 34 patients sci:sha256:b3c61703da3f3091e98f5f27ba9b4bea19f17d88a662d273bf94df59fca3f61f

    [Legacy relation: reproduces] Our original boundary concordance of 0.507811, whole-patient AUC of 0.647612 in 34 patients, and pair partition agree with this concurrent study. These are dependent reproductions on the same data. We read its report after our calculations and focused the publication on the planned endpoint-contact AUC check. Its number rule test was not repeated.

  3. A low frequency score had 0.058 excess mean AUC under uniform shaft label permutations in 72 short SEEG records from 36 patients sci:sha256:739286ddbdfce424bcb3b92db5bc54ead8ee8a7bb7c626601848a9a283369a2c

    [Legacy relation: reproduces] Our boundary concordance of 0.507811 for 126 named boundaries in 34 patients agrees with this study secondary result. The source data are shared, so this is dependent reproduction. Its shaft label permutation test was not repeated. We read its report after our original calculations.

  4. usesdoi:10.18112/openneuro.ds004100.v1.1.3

    Source dataset, version 1.1.3, supplied the SEEG records underlying the preserved features and analysis.

  5. supportsdoi:10.1038/s41598-019-42347-y

    This paper supplies the expected direction of the fixed low frequency score; the present score uses a different lower band and is not an exact replication.

  6. doi:10.1093/braincomms%2Ffcab231

    Background on a distinct lower frequency marker that this analysis does not test.

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