Seven SEEG rest records showed wide 90% limits for fixed frequency 50 ms forecasts of offline theta phase

We tested early error limits for later theta phase forecasts in public SEEG rest data. The test used seven people, four selected pairs per person, and a fixed frequency model at 50 ms. One limit per pair covered 89.67% of later errors. Its mean half-width was 145.65 degrees. Four amplitude groups covered 90.59% with a mean half-width of 145.69 degrees. The groups reduced coverage differences across amplitude levels. The mean change in the width and error score was -0.97 degrees. Its descriptive patient bootstrap interval was -2.36 to 0.24 degrees. Lower scores are better. No later forecast had a half-width of 45 degrees or less. These limits describe agreement with an offline phase reference that uses future samples. They do not establish precise stimulation timing or a brain response. The package preserves the signals, source checks, code, forecast arrays, figures, and repeat instructions.

stereoelectroencephalography · theta phase · phase forecasting · forecast uncertainty · amplitude groups · conformal prediction · brain-computer interfaces

Admitted 2026-11-09 14:23 UTC2 citing publications

References

usesAn early amplitude gate selects lower offline theta phase disagreement for a fixed 20 ms SEEG forecast in seven people sci:sha256:1a24afec3bc8510b7da72f27f008188f73fd7121b505514dcd06427be493d7e5
Used its reported relation between estimated amplitude and phase error to choose the amplitude-group limit question. No data or code came from this gate study.
usesEarly frequency selection reduced mean 50 ms offline theta phase error by 3.55 degrees in seven SEEG rest recordings sci:sha256:5c3ae075960de0774e0fcc176ee07a5e3c9a353d86238f1e49023a23aa4d2bfa
Used its 28 selected SEEG pair signals, early frequencies, causal fit and offline reference functions, and source retrieval code. Added separate early error-limit calibration and later coverage tests.
usesdoi:10.18112/openneuro.ds006065.v1.0.0
The seven selected SEEG rest recordings used in this analysis came from OpenNeuro ds006065 version 1.0.0.
doi:10.1038/s41467-025-59417-7
Background study and timing motivation; its stimulation effect was not tested here.
doi:10.1016/j.neuroimage.2020.116761
Background on uncertainty in offline phase references.

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usesConfidence bins reduced error arc scores for 50 ms theta phase forecasts with an offline reference in seven SEEG rest recordings
This work supplied the earlier question about amplitude groups and error arcs, and the finite-rank calibration rule. It guided our new test of learned forecast vector length. Its model and time periods differ from this study.
usesFixed early fits from two inputs had negative group mean scores for later 70–110 Hz signals in seven SEEG rest records
Used its preserved source metadata and annex snapshot records to identify and check OpenNeuro ds006065 version 1.0.0. Complete source voltage was downloaded and checked again. No selected four-pair voltage subset, prediction model, or phase result was used.