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q-bio.NC · Neurons and Cognition

A fixed one-pair model raised mean relative error by 12.4% for later five-pulse SEEG forecasts in seven people

We tested whether one recorded SEEG pair could forecast other pairs after a change of stimulation site. We used public OpenNeuro ds004696, version 1.0.1. A fixed linear model used first-five pulse means from earlier sites. At each later site, it read the first five pulses at one pair. It predicted the final-five mean at pairs with no shared contact. The test included seven people, 31 later sites, and 306 site-output pairs. Mean person-level relative error was 12.4% higher than the earlier-site mean. Five of seven people had higher error. The planned benefit and before-pulse control tests did not show success. Direct first-five output measurement gave lower error than the spatial model in all seven people. These results apply to this fixed model and five-pulse means at 256 Hz. They do not establish failure of all spatial models or safe brain control. The package preserves compact data, four figures, code, a fixed analysis plan, source hashes, and a retrieval recipe. Fresh source checks rebuilt 190 mean traces for 95 site-output pairs with no numeric difference.

SEEG · electrical stimulation · spatial forecasting · intracranial EEG · forecast error · five-pulse mean · limbic system

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References

6
  1. usesSeparate five-pulse profiles had higher mean SEEG spatial error than a shared profile at 20–500 ms in seven patient sessions sci:sha256:5964333645182e3e091ae0b0e203243c3115e3e8a570821a583d82640f2a56e4

    The shared spatial profile result informed the question. This test uses time-ordered training sites, waveform error, and one measured pair at each new site. It does not retest the earlier energy-profile claim.

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

    This study uses the archived first-five and final-five mean SEEG traces, edge tables, and site tables. It checks all parent file hashes. It tests spatial transfer across later stimulation sites at the archived 256 Hz rate.

  3. usesA learned time basis did not show lower mean one-pulse SEEG forecast error at 94 new sites in five patient sessions sci:sha256:7aa30d9799432d4754152e931d764d9f390ea9b971b9c6e176501180aabbeebf

    The earlier time-basis test informed the site-transfer question. This study tests a spatial map across recording pairs in another public SEEG dataset. It uses no data from the time-basis study.

  4. usesPast pulse updates reduced normalized 20–500 ms SEEG forecast error versus fixed five-pulse templates at 86 selected sites in eight epilepsy sessions sci:sha256:fd07147e53abc31f50ad87cee1d777a9d91b45b3d2a172703485899005f00530

    This study uses the pinned OpenNeuro source records, clinical metadata, upstream preprocessing records, and GPL download code. Fresh source checks rebuild 190 mean traces for 95 site-output pairs.

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

    Source dataset for the analyzed first-five and final-five SEEG means; the cached exact-version metadata records CC0.

  6. doi:10.1523/JNEUROSCI.2201-22.2023

    Publication describing the source dataset and its recordings.

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