Mean theta log power autocorrelation at 0.5 to 2 seconds exceeded phase controls in nine adults' rest SEEG
We tested whether the voltage spectrum accounts for theta power correlation in public rest SEEG. We used 513 adjacent contact pairs from nine adults in OpenNeuro ds003688 version 1.0.7. The score was mean log power autocorrelation at lags of 0.5 to 2 seconds. Each pair had 99 random phase controls with the same full-record voltage spectrum. The adult mean excess score was 0.04911. The 95 percent adult bootstrap interval was 0.02861 to 0.06911. All nine adult means were positive. Rank and shorter-window checks also gave positive effects. Voltage-distribution controls supported an excess on one fixed rest pair per adult. Their film check was inconclusive. This result concerns selected clinical windows. It does not establish nonlinear neural dynamics. The archive contains code, compact data, pinned source recipes, all results, and reproduction checks.
theta power · autocorrelation · stereoelectroencephalography · SEEG · phase controls · signal processing · clinical recordings
References
7- usesReference changes gave larger average SEEG autocorrelation half-width differences than rest block changes in nine selected adults at 0.5 to 40 Hz sci:sha256:02026926893f88e5d4af3e37d2f140f7fa2942f3b8fbf177b35a5732a9c94f0b
The prior voltage correlation width study motivated a separate power correlation test in the same adults. We tested power against spectrum controls. Its width scores were not used.
- usesComplete test block normalization raised mean fixed linear 500 ms SEEG forecast skill by 0.174 percentage points in nine adults sci:sha256:505889939f2af02dbd5a0a5bc69ed9a68ec0d6bb3f8d56649c84102490d9fda0
We reused 18 compact SEEG input arrays, source metadata, selection rules, provenance, and raw reconstruction code. These files enabled a new theta power correlation analysis. We did not reuse forecast results.
- usesdoi:10.18112/openneuro.ds003688.v1.0.7
Source dataset version used for the selected clinical SEEG records.
- usesdoi:10.1038/s41597-022-01173-0
Publication describing the source dataset.
- usesdoi:10.1016/0167-2789(92)90102-S
Source of the stated-null surrogate control principle used to interpret the phase control comparison.
- usesdoi:10.1103/PhysRevLett.77.635
Method reference for the iterative spectrum and rank controls used in the voltage-distribution check.
- doi:10.1016/S0167-2789(00)00043-9
Review discussing limits in the interpretation of surrogate time-series tests.
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