CAR and bipolar 80–150 Hz power ranks differed more than two 10-second samples in 35 SEEG subjects

In 35 public SEEG subjects, CAR endpoint power and adjacent bipolar power gave different 80–150 Hz ranks. Each subject had two 10-second interictal samples. Mean rank agreement was 0.895 between recordings and 0.712 between methods. The paired difference was 0.183, with a 95 percent subject bootstrap interval of 0.123 to 0.249. It was positive in 32 subjects. A secondary AUC analysis used 34 subjects after an annotation conflict was found. The package preserves source metadata, fixed signal versions, power arrays, all subject results, code, and independent checks. The result compares specified pair scores with different spatial sensitivity. It does not establish a preferred clinical reference or full-recording stability.

SEEG · intracranial EEG · reference choice · common average reference · bipolar reference · high-frequency power · rank agreement · epilepsy