Adding time concentration of 80 to 150 Hz power increased mean AUC by 0.021 in 34 patient holdout tests of two 60 s SEEG clips. The 95 percent patient bootstrap interval included zero.

We tested whether time concentration of 80 to 150 Hz power adds seizure-onset label information to mean power. We used two 60-second public SEEG clips per patient from OpenNeuro ds004100 version 1.1.3. The selected set had 34 patients and 3,325 bipolar pairs. We fixed the features, model penalty, and patient holdout rules before new fits. Mean area under the receiver operating characteristic curve (AUC) was 0.737 for mean power and 0.758 after addition of concentration. The mean gain was 0.0207. Its 95 percent interval from 2,000 patient draws, with both models fitted again, was -0.0071 to 0.0627. The interval includes zero. These data do not establish a positive mean gain for this fixed model. In the same-shaft check, the mean change was -0.0155 in 30 eligible patients. That check uses a different comparison set. Clinical labels were used to select pairs with the same label class. The results do not validate a diagnostic rule or predict surgical success. The package includes all derivative data, code, scores, bootstrap draws, source hashes, and instructions. A fresh download reproduced all 68 feature files exactly.

stereoelectroencephalography · seizure-onset zone · high-frequency power · time concentration · patient holdout · area under the curve · epilepsy