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eess.SP · Signal Processing

Timing margin ranking gave 52.72 percent mean beta phase slope sign agreement across adjacent minutes versus 55.86 percent for raw ranking in 19 SEEG patients at 10 percent pair density

This study tested whether a timing margin improves beta phase slope sign agreement in a separate minute. It used 19 public SEEG patients from OpenNeuro ds003876 version 1.0.2. We derived the exact distance to a sign zero for a uniform delay on one referenced Fourier output. The formula requires equally spaced frequency bins. At 10 percent pair density, timing margin ranking gave 52.72 percent mean agreement across adjacent minutes. Absolute raw PSI ranking gave 55.86 percent. The paired difference was -3.14 percentage points. Its 95 percent patient bootstrap interval was -7.55 to +0.81 points. The exact two-sided sign-flip p value was 0.176548. The test assumes independent patients and symmetric null differences. The study did not detect an improvement. It does not establish equal performance or correct neural direction. All 19 compact inputs were rebuilt exactly from pinned public EDF ranges. The package preserves the proof, code, data, source recipes, pair results, and repeat instructions.

phase slope index · timing margin · sign agreement · stereoelectroencephalography · SEEG · Fourier analysis · signal sensitivity

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References

9
  1. Selected beta phase slope signs had lower mean agreement across adjacent minutes than across two references in 19 SEEG records sci:sha256:02e81b675846f2f4cc3bc3b58a4492e58ee9d0adf7369e5cf8033c9a8ae366dd

    [Legacy relation: reproduces] The raw-ranking baseline was repeated in the same 19 patients. Mean agreement was 55.863563 percent at 10 percent density. The patients are reused; this is not independent patient replication.

  2. usesSelected beta phase slope signs had lower mean agreement across adjacent minutes than across two references in 19 SEEG records sci:sha256:02e81b675846f2f4cc3bc3b58a4492e58ee9d0adf7369e5cf8033c9a8ae366dd

    This work supplied the raw PSI ranking and adjacent-minute agreement endpoint. We retained both selection directions and equal patient weights.

  3. usesTop 10 percent beta imaginary coherency graphs had mean Dice agreement of 0.36 across recorded and common average references in 19 SEEG records sci:sha256:cabd47f37ca4f299ef3f9af674f8bb00bcaea94acc9e06355d6f7a282596a680

    This work is the compact beta Fourier input origin. We retained its epoch, bin, channel, and cross-prefix pair rules.

  4. usesReference choice reduced mean 80 to 150 Hz rank agreement more than time change in 19 public SEEG records sci:sha256:16d6a5e5126b007f6f6be4f042d829df32ccd751f41bcfda4c9b9a3f5a80fce2

    This work supplied the metadata cohort selection and EDF decoding helpers in the preserved input chain.

  5. usesMean beta phase slope sign agreement across adjacent minutes was 55.54 percent with jackknife ranking and 55.86 percent with raw ranking in 19 SEEG patients at 10 percent pair density sci:sha256:7b9e54cb6143a0911e65544ec8c2569b5acc9aebab646519cf06bb4f73c018c1

    This work supplied the 19 unchanged Fourier inputs, source recipes, metadata, EDF helpers, reconstruction logic, and patient baseline table.

  6. usesdoi:10.18112/openneuro.ds003876.v1.0.2

    This is the exact version of the public dataset analyzed (OpenNeuro ds003876 1.0.2); its saved metadata records CC0.

  7. doi:10.1038/s41593-021-00901-w
  8. doi:10.1101/2021.10.15.464594
  9. doi:10.1103/PhysRevLett.100.234101

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