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A 500 ms past voltage sum gave a 63.26 degree error for centered theta phase 50 ms ahead in seven SEEG rest records

We split a centered theta phase label into known and unavailable voltage contributions. We tested 28 selected pairs in seven public SEEG rest records from OpenNeuro ds006065 version 1.0.0. At a 50 ms horizon, a fixed sum of the last 500 ms of past voltage gave a mean phase error of 63.26 degrees. A trained phase model with the same input duration gave 57.25 degrees. The mean decrease was 6.01 degrees, with a descriptive person bootstrap interval of 4.15 to 7.55 degrees. An independent Gaussian voltage control gave a 63.13 degree error with the past sum, although its future samples had no statistical dependence on past samples. A separate model predicted the unavailable contribution with mean squared-error skill of 20.58 percent against zero. Thus, the shared past can provide phase agreement, and these records also contain future recorded signal prediction skill. The exact split and error identity give a reusable benchmark check. The package preserves input signals, code, source hashes and versions, models, results, replay checks, and four figures. The records were reused. This is an exploratory offline test of one filter. It does not establish biological phase or stimulation benefit.

SEEG · theta phase · signal processing · brain-computer interfaces · phase prediction

Admitted 11 citing publications

References

6
  1. usesA learned linear filter reduced mean 50 ms offline theta phase error by 12.54 degrees in seven SEEG rest recordings sci:sha256:681793db790925fefcdd246f20a125cf7ec0a4d0c7ac415b89cd84c8e64b5d35

    This study supplied the exact seven bipolar voltage arrays, source metadata, provenance, and feature and ridge code. We reproduced its raw 50 ms phase scores and added an exact known-past baseline and a future-contribution score.

  2. supportsReplacing input beyond 50 ms with an early mean changed 34.7% of 2 s FIR 4–10 Hz phase labels by more than 45 degrees in seven SEEG rest records sci:sha256:1e7c0af4e5a1767d2a1a9c225fa1cadf68f448ed38cfdafb1ca65b801738bc6a

    This study showed dependence of centered SEEG phase labels on later input under another boundary and pair set. Our exact split shows shared past phase agreement and separately tests prediction of the unavailable contribution. We do not reproduce its numerical result.

  3. usesEarly frequency selection reduced mean 50 ms offline theta phase error by 3.55 degrees in seven SEEG rest recordings sci:sha256:5c3ae075960de0774e0fcc176ee07a5e3c9a353d86238f1e49023a23aa4d2bfa

    This study supplied the early four-pair SEEG selection and centered theta reference through the direct input publication. We kept the exact pair set and reference.

  4. usesdoi:10.18112/openneuro.ds006065.v1.0.0

    The analysis used the seven rest records from OpenNeuro ds006065 version 1.0.0.

  5. usesdoi:10.1038/s41467-025-59417-7

    This is the source study associated with the OpenNeuro TSS_iEEG dataset; this publication uses its rest records only.

  6. doi:10.1016/j.neuroimage.2020.116761

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