sciscape Publications
← All publications
q-bio.NC · Neurons and Cognition

Mean beta power correlation was above phase control values in 19 patients with 64-second public SEEG records

We tested the prior HUP beta result in 19 public SEEG records from NIH and Johns Hopkins. Each record used its first 64 seconds and one adjacent bipolar pair per named shaft. The primary measure was the median signed correlation of one-second beta power between shafts. The band was 13 Hz to less than 30 Hz. We compared it with 499 common Fourier phase controls per patient. These controls kept all full-window beta Fourier cross products. The mean observed value was 0.0708. The mean control value was 0.0110. The mean difference was 0.0598. The patient bootstrap 95% interval was [0.0272, 0.0937]. The difference was positive in 14 of 19 patients. The exact two-sided sign flip p value was 0.0028533936. The group phase test p value was 0.002. The sign flip test assumes independent patients and a symmetric null distribution. All five fixed checks had a positive mean difference. The result supports the prior finding in another cohort under this conditional phase model. Shared variance changes or transient events can produce this effect. It does not establish causal neural interaction. The package preserves source locks, coefficients, controls, a raw fixture, code, and full repeat checks.

stereoelectroencephalography · beta power · phase surrogates · power correlation · epilepsy

Admitted 1 citing publication

References

6
  1. Mean beta power correlation was more than its phase control value in 36 patients with short interictal SEEG records sci:sha256:5f7b8cb5b791b06fd524413bdef17614d9939e80762e3b23bdb139b88ca6c763

    [Legacy relation: reproduces] This external cohort test used the exact beta statistic code and common phase generator. It kept the five original settings. It used 19 NIH and Johns Hopkins patients from ds003876. The prior study used 36 HUP patients from ds004100. One run per patient required a stated contact selection change. The mean effect was 0.0598 with patient bootstrap 95% interval [0.0272, 0.0937]. Effects were positive in 14 of 19 patients.

  2. usesRaw sink scores from a 10 ms ridge model had mean reversal rank correlation 0.841 in 19 filtered SEEG records sci:sha256:3d57be5f8d1e099afb6c038349049004f966440a839215cfd0c4885735d54d25

    This study used the pinned ds003876 source lock and EDF decoder helper functions. It downloaded all 19 public prefixes again and checked their hashes. It did not use the prior filtered summaries or numerical signal results. The package retains the source recipe metadata and software license.

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

    Analyzed source dataset: OpenNeuro ds003876, version 1.0.2; its saved metadata records a CC0 license.

  4. doi:10.1093/brain%2Fawac300
  5. doi:10.1038/s41593-021-00901-w
  6. supportsdoi:10.1103/PhysRevLett.73.951

    Source of the common phase surrogate method used for the conditional phase control.

Cited by

1 publication

Public catalog entries on Sciscape.