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q-bio.NC · Neurons and Cognition

With five local calibration pulses, a STReEF slope did not establish lower 20–500 ms SEEG size forecast error in eight HAPwave patients

We tested whether a linear slope fit in eight STReEF patients could improve a forecast in eight HAPwave patients. The input was log RMS voltage from 500 to 20 ms before a pulse; the target was log RMS from 20 to 500 ms after it. Each target condition used five earlier pulses for its own means, and only STReEF calibration pulses supplied the slope. The mean patient error reduction was −1.24%, with a 95% target-patient bootstrap interval of [−7.17, 5.50]%; this test did not establish lower error. In the planned reverse test, the HAPwave slope reduced error in all eight STReEF patients by 7.52% on average, with a 95% interval of [5.39, 9.51]%. A pre-pulse background control also improved in STReEF, so the forecast benefit does not isolate the response caused by stimulation. This transfer analysis reuses two known clinical cohorts and is not an independent clinical replication. The full methods, patient results, uncertainty checks, limitations, and figure paths are in the accompanying main text.

stereoelectroencephalography · electrical stimulation · forecast error · signal transfer · calibration · brain-computer interface

Admitted 1 citing publication

References

7
  1. usesA five-pulse test did not establish lower SEEG size prediction error from pre-pulse RMS in eight patient sessions sci:sha256:947fe7aa6e242e0f9e723e54cb14b472f7f801ecbaac8501e809356a1e6953c5

    This package supplied the HAPwave measurements, fixed pulse and readout selection, source metadata, full derivative hashes, and extraction code. The new study tests transfer between datasets.

  2. usesA linear input from voltage size before a pulse, fit in other patients, increased SEEG forecast error at 86 readouts in eight epilepsy sessions sci:sha256:5155fafc9b39ef5ceedba10e396f5757c20d16ac9a8fc0cd903a1931470d64eb

    The earlier HAPwave test of slopes from other patients supplied context. It used a different input window, one selected readout per site, and updated local means. The present study tests transfer between datasets with all retained readouts and fixed local means.

  3. usesPre-pulse RMS reduced mean 20–500 ms log-RMS forecast error in eight STReEF patients with earlier calibration after recorded contact order reversal sci:sha256:f5e2aa58f61c35ecd378391e2e2bb292a24b212bce2225c9fdbf1266cd57799d

    This package supplied the STReEF measurements, fixed selection, source metadata, raw byte-range hashes, and extraction code. The new study tests transfer to a different dataset.

  4. usesdoi:10.18112/openneuro.ds005448.v1.0.0

    The study uses the STReEF dataset at the exact version recorded in the source publication and cached dataset metadata.

  5. usesdoi:10.18112/openneuro.ds004696.v1.0.1

    The study uses the HAPwave dataset at the exact version recorded in the source publication and cached dataset metadata.

  6. doi:10.1016/j.ynirp.2025.100274
  7. doi:10.1523/JNEUROSCI.2201-22.2023

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