A fixed 6 Hz phase model increased later SEEG size prediction error versus a fixed mean after five calibration pulses in eight sessions

We tested a phase forecast for voltage size after electrical stimulation. We used public SEEG from OpenNeuro ds004696 version 1.0.1, with eight patients and one session each. The test had 86 sites, 886 stimulation-to-readout pairs, and 430 distinct later pulse events. A fixed 6 Hz harmonic used only samples from 500 to 20 ms before each pulse. For each pair, five early good pulses set a two-feature ridge model. The final five good pulses tested it. The target was log centered RMS from 20 to 500 ms after the pulse. The reference was the early target mean. Mean patient error reduction was -4.66 percent. The descriptive 95 percent patient bootstrap interval was -5.53 to -3.68 percent. The exact two-sided patient sign-flip value was 0.0078. 0 of eight patients had lower error. The fixed phase model increased mean prediction error in this sample. The target includes ongoing voltage, evoked voltage, noise, and possible artifact. The result does not measure a causal phase effect or test a stimulation policy. The package preserves phase features, pulse forecasts, source hashes, numerical results, checks, and figures.

SEEG · electrical stimulation · phase forecast · 6 Hz · voltage RMS · prediction error · calibration

Admitted 2026-11-09 18:17 UTC1 citing publication

References

usesFive-pulse noise scaling reduced later single-pulse error for 20–500 ms centered bipolar SEEG in eight patient sessions sci:sha256:fbc06ab469d48eac7a6f54dd97cd24ccd9c7c5ca4b0db4d64340536b3e81428a
The extraction code inherits compact trial response products and the early shape subset from this earlier code source.
usesA five-pulse check selected more repeatable bipolar SEEG pairs within eight epilepsy patient sessions sci:sha256:b5b7963746f5c6d2a2a8f7844ec590732a4eb152bc7a70979b3bc95c3e27820f
The extraction code inherits the adjacent-contact bipolar selection and response Gram method from this earlier code source.
usesA five-pulse test did not establish lower SEEG size prediction error from pre-pulse RMS in eight patient sessions sci:sha256:947fe7aa6e242e0f9e723e54cb14b472f7f801ecbaac8501e809356a1e6953c5
We used the spatial selection, event metadata, and five-early/five-later split. We rebuilt all source files, exactly matched the saved response products, and added phase features. We fit each pair from its five early pulses only.
usesdoi:10.18112/openneuro.ds004696.v1.0.1
The study used OpenNeuro ds004696 version 1.0.1; source file URLs, sizes, and hashes are preserved.
doi:10.1523/JNEUROSCI.2201-22.2023
doi:10.1111/epi.17528

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usesA centered 1 s 4–10 Hz phase filter predicted random response sizes in a simulation with SEEG from eight patients
This prior causal phase prediction study informed the local plan and the first-five versus final-five pulse split. We did not reuse its fitted models or result values.