SEEG pairs with onset labels had higher mean high-gamma concentration within shafts over sixty seconds in 32 patients
We tested whether high-gamma energy was more concentrated in SEEG pairs with clinical seizure onset labels. We used the first 60 seconds of two public interictal records per patient from OpenNeuro ds004100 version 1.1.3. Concentration was the energy fraction in the six seconds with the largest one-second powers. The main test compared label groups on the same electrode shaft. It included 32 patients and 88 shafts. The labeled minus unlabeled difference in record A was 1.97 percentage points. The 95% patient bootstrap interval was 0.14 to 4.30 points. The mean concentration was higher in pairs with a seizure onset label. The beta-band comparisons also had positive differences. The result does not establish a high-gamma-specific effect. We also tested a fixed eight-pair selection rule in all 36 patients. The rule ranked the mean of the lowest 30 one-second high-gamma powers. In A, this rule changed the selected label fraction by -0.35 points. Its interval was -2.78 to 2.08 points. The package preserves powers, native audit samples, source metadata, code, figures and a retrieval recipe. These patients also appeared in the cited ten-second study. We did not test task decoding, physical stimulation or stimulation safety.
SEEG · stereoelectroencephalography · high-gamma power · temporal concentration · seizure onset labels · signal selection · brain-computer interface · OpenNeuro
References
4- usesEight high-gamma SEEG pairs selected with ten seconds had 76.7% mean retention across two interictal records in 36 patients sci:sha256:4947f6220434c945bfb5f749fa56c65ce926ce8b7742925c1b030438e32ad73f
We use its original EDF header and contact parser. The parser is preserved with attribution.
- usesEight SEEG pairs selected by 70–110 Hz power had excess seizure onset labels in 36 epilepsy patients sci:sha256:84f68f3560bb7f223f4749f5296ce18a2349785724480af498da442505265baf
We use its cohort, frozen source metadata, pair and label rule, extraction checks, and ten-second powers. We retrieve sixty-second prefixes and test energy concentration within shafts in the same patients.
- usesRemoval of the largest 24 of 120 gamma power values left a seizure onset label excess above the eligible pair reference in eight SEEG inputs per patient across 36 epilepsy patients sci:sha256:af101176bedc830b71b08a5bbab94ebf1373332f7cfa6499a582549a7fa13cd9
We use its 120-second trimming and all-pair concentration results to state the scope of the present within-shaft result. We read its description after saving our plan. We do not use its data or code for these calculations.
- usesdoi:10.18112/openneuro.ds004100.v1.1.3
The analyzed interictal SEEG recordings and clinical channel labels came from OpenNeuro ds004100 version 1.1.3.
Cited by
1 publicationPublic catalog entries on Sciscape.
- usesLinks with a shared contact had a larger share of strong local gamma correlations over 60 seconds in 33 SEEG patients
We used the fixed 36-patient SEEG cohort, source metadata, source headers, object versions, and source-prefix hashes. We used its 72 mean-power arrays to check new bipolar band variances. We downloaded fresh source prefixes to compute contact covariance.