Spacing 16 seconds of beta SEEG epochs gave no clear gain in later scores for the top 10 percent of links in 19 patients under patient independence and null sign symmetry

We tested whether time spacing improves beta link selection in public SEEG. We used OpenNeuro ds003876 version 1.0.2 and a fixed cohort of 19 epilepsy patients. Each sample contained 16 seconds. Both designs used the same 48-second training pool once across three samples. We selected the top 10 percent of links between different contact name prefixes. A separate later minute supplied the test scores. The mean patient change, spaced minus consecutive, was -0.00069773 in the debiased squared weighted phase lag index. The 95 percent patient bootstrap interval was -0.00284733 to 0.00117972. The exact two-sided sign-flip p value was 0.56183. Ten of 19 patients had a positive change. The test assumes patient independence and null sign symmetry. The result does not establish equal performance. The contact quality screen included test time. This is a new sampling comparison in a reused cohort. Fresh public bytes rebuilt all 19 inputs exactly. Every primary selected link matched a separate calculation and full precision extraction. A full repeat matched all numerical outputs. The package preserves source code, Fourier data, link scores, patient results, source identities, hashes, the fixed plan, validation reports, figures, and repeat instructions.

stereoelectroencephalography · SEEG · weighted phase lag index · beta band · sampling design · epilepsy