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q-bio.NC · Neurons and Cognition

A limited time trend from five pulses increased later SEEG forecast error at 20 to 500 ms in eight sessions

We tested a fixed time trend for later brain stimulation response forecasts. We used public SEEG data from OpenNeuro ds004696 version 1.0.1. The test had eight epilepsy patient sessions, 86 stimulation sites, and 886 bipolar readouts. Five early pulses fitted each forecast. Five later pulses tested it. The reference was a mean with a noise scale. The new method added a time trend with a noise scale and a limit of one early time span beyond the last fit pulse. For centered voltage at 20 to 500 ms, mean patient error increased by 37.94%. The descriptive 95% patient bootstrap interval was 26.32% to 50.52%. Error increased in all eight patients. Added forecast power had little mean alignment with later voltage. This result applies to this fixed method in these sessions. It is an exploratory test of reused data. It does not test a live brain interface. The package preserves exact pulse products, code, forecast weights, error tables, figures, and source records. Independent numerical and event checks passed. A new full source download failed; this limit is recorded.

stereoelectroencephalography · electrical brain stimulation · voltage forecasting · time trend · forecast error · limbic system · OpenNeuro ds004696

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References

5
  1. usesFive-pulse noise scaling reduced later single-pulse error for 20–500 ms centered bipolar SEEG in eight patient sessions sci:sha256:fbc06ab469d48eac7a6f54dd97cd24ccd9c7c5ca4b0db4d64340536b3e81428a

    This publication supplied the five-pulse mean noise scale. The same rule is the reference forecast and mean component of the new time trend.

  2. usesEight SEEG sessions gave an uncertain 0.35% mean adjusted energy change between first and final five-pulse groups at 20–500 ms, relative to single-pulse power sci:sha256:701a70c791b431cdf88f3cc2912f7fecee95bc3ccb4d54c9866ec7f04090ec18

    This publication supplied the exact pulse products, event selections, extraction code, and pinned source records used for all new forecasts.

  3. usesThe test did not detect a positive time relation for SEEG waveform distance at 20 to 500 ms in eight sessions under log count control and joint pulse exchangeability sci:sha256:0afeb25cd2688623dc0660e2e238543ba8a3fcb9e008408da74e7b3711c8d9a5

    Its time-distance test motivated a separate forecast question. We tested the signed trend from five early pulses against later voltage. Its reported outcomes did not enter the new fits.

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

    The exact dataset version used by the study is OpenNeuro ds004696 v1.0.1; the analysis source records identify its public Git commit and checksums.

  5. doi:10.1523/JNEUROSCI.2201-22.2023

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