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q-bio.NC · Neurons and Cognitioneess.SP · Signal Processing

Five early pulses set gains that reduced centered SEEG forecast error at 20 to 500 ms against fixed 0.5 gain in seven of eight patients

We tested whether five early stereoelectroencephalography (SEEG) responses can set a shared gain that predicts five later responses better than a fixed gain of 0.5. The source was OpenNeuro ds004696 version 1.0.1, with eight patients, 86 stimulation sites, and 886 site-readout instances. The fitted gain used pooled early voltage products. For centered voltage at 20 to 500 ms, mean patient relative error fell by 10.2 percent against fixed 0.5. The descriptive 95 percent patient-resampling interval was 5.5 to 14.6 percent. Seven patients had less error. Error fell by 6.8 percent against the full early mean. The size depended on score weights. Separate calculations repeated two earlier same-cohort results to their reported precision. This is a replication with an added benchmark on reused patients and outcomes. It does not show better online BCI control.

stereoelectroencephalography · SEEG · electrical stimulation · brain-computer interface · response forecasting · repeatability · voltage error · OpenNeuro

Admitted 1 citing publication

References

6
  1. Five-pulse noise scaling reduced later single-pulse error for 20–500 ms centered bipolar SEEG in eight patient sessions sci:sha256:fbc06ab469d48eac7a6f54dd97cd24ccd9c7c5ca4b0db4d64340536b3e81428a

    [Legacy relation: reproduces] A separate calculation repeated the 6.66 percent mean error reduction for separate readout gains. Every patient value matched the reported table to its precision. The same patients and outcomes were reused. This check was added after the primary result.

  2. A shared site scale gave a mean 0.93% error increase for 20 to 500 ms SEEG responses after five-pulse calibration in eight patients sci:sha256:5e40376589652ef208303520c3e6236c3bc2343041f1e1be7c8d5a1ea02c9ac6

    [Legacy relation: reproduces] A separate calculation repeated the 0.93 percent mean error increase for the earlier shared gain under readout-normalized error. Every patient value matched the reported table to its precision. This study also tested pooled voltage products with a fixed 0.5 gain reference.

  3. usesPower weights fit from five pulses gave no clear mean 20–500 ms SEEG voltage forecast gain in eight sessions sci:sha256:5f8ad290d211abb81202a82ed21683bfe60c8df22cceb4e18c340cf2fc14ee28

    This publication supplies the exact all-pulse voltage products, source maps, two native waveform examples, extraction code, source URLs, and hashes used in this study.

  4. usesGains from three pulses reduced centered SEEG forecast error at 20–500 ms in two recordings sci:sha256:421463b9b0f032a1019b79cea9e5b5f37ffe7e962d9977c5575eb0121e751d28

    This report supplied the early-pulse repeatability gain formula read before the local plan. This study used five pulses and a shared site gain based on pooled voltage energy.

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

    The analysis uses public voltage derivatives from OpenNeuro ds004696, version 1.0.1; the saved version-specific metadata records CC0.

  6. doi:10.1523/JNEUROSCI.2201-22.2023

    The source dataset identifies this study as the publication describing the single-pulse intracranial recordings and requests citation of it.

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