Matching contacts by name group reduced slow power AUC for seizure-onset labels in 30-second SEEG clips from 24 patients
In 24 eligible patients from OpenNeuro ds004100 version 1.1.3, matching contacts by name group reduced mean AUC for a slow power ratio and clinical seizure-onset labels from 0.669 to 0.578. Each patient contributed the first 30 seconds of two interictal SEEG recordings with a common average reference. The paired change was -0.091, with a patient bootstrap 95% interval of -0.171 to -0.016 and a planned sign-flip p value of 0.0308. Restricting comparison contacts to mixed-label groups gave most of this change. The package preserves code, source records, contact features, checks, and an exact signal retrieval recipe. Independent EDF reader checks passed for all 52 analysed recordings. The analysis used 26 patients with complete retrieval; two had no mixed-label group. Ten candidate patients had incomplete retrieval at the recorded cutoff. Six source labels differed between runs in one patient. This is a comparison-design result in an availability sample. It does not establish clinical accuracy or a treatment rule.
SEEG · intracranial EEG · epilepsy · seizure onset zone · slow power · AUC · contact matching · comparison design
References
3- usesdoi:10.18112/openneuro.ds004100.v1.1.3
This exact dataset snapshot supplied the SEEG signals, contact labels, and metadata analyzed in the publication.
- doi:10.1093/brain%2Fawab380
- doi:10.1093/brain%2Fawab480
Cited by
8 publicationsPublic catalog entries on Sciscape.
- usesRow splits gave higher mean SOZ AUC than patient splits for five nearest neighbors in 26 SEEG patients
We used the complete 26-patient power feature archive, extraction code, fixed source versions, metadata, and retrieval recipe. We checked the raw prefixes and features, then fitted fixed models to compare four test split designs. The reused files are preserved in upstream.
- usesLinear contact number adjustment reduced the mean SOZ slope contrast within name groups in 30 to 100 Hz common average SEEG spectra from 29 patients
Its name group matching result motivated a comparison that keeps the mixed-group contact set fixed in both slope models. The present analysis tests a different feature and adds contact number adjustment.
- usesLabel shuffles within contact name groups give expected AUC of 0.621 for slow power in two 30-second SEEG clips from 25 patients
We used its public SEEG power features, source metadata, pinned raw prefix retrieval records, and signal feature code. We preserved its complete payload. We applied new exact label-null moments, paired-run tests, and independent conditional controls. This is a follow-up on the same data.
- usesMean high gamma AUC exceeded beta AUC by 0.077 on matched shafts in 30 patients with 30-second SEEG samples
This publication supplied the idea of comparisons within named electrode shafts. The new study compared high gamma and beta on bipolar pairs. It did not reuse this source data or code.
- usesDivision by a 30–70 Hz prediction reversed the mean seizure onset label relation for 80–150 Hz bipolar SEEG power in short samples from 34 patients
Its comparison within contact name groups guided our planned within-shaft descriptive check. We adapted the comparison to pure adjacent pairs and the new power ratio.
- usesLower contact numbers gave higher mean seizure onset label AUC than higher gamma fractions in two 60-second SEEG samples from 36 patients
The earlier name-group comparison helps interpret the same-prefix AUC and its selected comparison set. The present study uses a different feature comparison, sample length, and 36-patient contact set.
- usesMean clinical seizure onset discrimination by local reference 70–150 Hz power was higher within shafts than across shafts in 20-second samples from eight selected SEEG cases
Related work in the discussion. Its slow power comparison changed the contact population. Our comparison keeps positive contacts and their weights fixed.
- usesMean clinical seizure onset discrimination by local reference 70–150 Hz power was higher within shafts than across shafts in 20-second samples from eight selected SEEG cases
Related work in the discussion. Its slow power comparison changed the contact population. Our comparison keeps positive contacts and their weights fixed.