A contact energy scale preserved SEEG forecasts across two full bipolar layouts on the same three contacts in eight patients
We tested whether an equivalent bipolar layout change alters a short-calibration SEEG response forecast. One shared scale used recovered contact energy. A proof shows that this rule preserves the forecast for complete layouts on the same contacts. We tested 241 triples at 83 stimulation sites in eight patients from OpenNeuro ds004696 version 1.0.1. Five early pulses fit each rule. Five later pulses tested centered voltage error. The contact energy layout distance was at most 2.52e-16. Separate pair scales changed 88.0% of primary forecasts. The mean patient error reduction from adjacent pair scales was 1.46%, with a descriptive 95% patient bootstrap interval of 0.05% to 3.79%. The contact energy rule had lower normalized mean patient error in the primary test. The interval stayed above zero. The raw-error interval included zero. The package supplies code, a forecast tool, data products, figures, source hashes, and repeat instructions. The test does not establish online BCI performance or a stimulation policy.
SEEG · stereoelectroencephalography · brain-computer interface · bipolar layouts · response forecasting · contact energy · forecast error
References
5- usesA contact metric ridge kept gamma scores between shafts unchanged across two full bipolar layouts on the same contacts in 32 SEEG patients sci:sha256:7faf68802628950e12aa1e89707154f65b0c83cf550902e08295ae655105d9e0
This work supplied the contact metric idea for equivalent full bipolar layouts. We apply that idea to response forecast scaling and test later pulse error in a different public SEEG dataset.
- usesPower weights fit from five pulses gave no clear mean 20–500 ms SEEG voltage forecast gain in eight sessions sci:sha256:5f8ad290d211abb81202a82ed21683bfe60c8df22cceb4e18c340cf2fc14ee28
This work supplied eligible contact and site tables, pinned source versions, source metadata, retrieval code, and marginal waveform products. We retrieved new joint products and checked their adjacent marginals against this input.
- usesGains from three pulses reduced centered SEEG forecast error at 20–500 ms in two recordings sci:sha256:421463b9b0f032a1019b79cea9e5b5f37ffe7e962d9977c5575eb0121e751d28
This work supplied the related scalar repeatability rule. We use its bounded signal-to-noise scale with five calibration pulses in a physical contact metric.
- usesdoi:10.18112/openneuro.ds004696.v1.0.1
Source processed voltage derivatives and metadata for the eight-patient test.
- doi:10.1523/JNEUROSCI.2201-22.2023
Cited by
2 publicationsPublic catalog entries on Sciscape.
- usesTwo covariance targets kept SEEG site decisions fixed across full layouts of consistent contact differences but differed on 115 of 536 pulses in four records
Its contact energy forecast result informed the initial question.
- usesA fixed contact norm preserved five-pulse SEEG medians across three connected layouts from the same contact voltages in eight patients
This study uses the fixed contact energy principle and the mean scaled from contact noise as a comparator. It extends that principle to a geometric median and a connected graph with redundant edges. Its public test uses 83 triples, not the 241 triples in the cited study.