Three spread pulse records had higher mean normalized 20–100 ms SEEG forecast error than nearby records at equal mean times in eight patients

Three spread pulse records were compared with three nearby records for SEEG calibration. Nonnegative weights gave both estimates the same mean time. The target was the final-five-record mean. Public OpenNeuro ds004696 data supplied eight patients, 86 stimulation sites, and 886 remote bipolar readouts. In the 20–100 ms window, equal-patient normalized error was 0.756 for spread retention and 0.677 for nearby retention. The mean increase was 11.7 percent. The descriptive 95 percent patient interval for the increase was -0.4 to 24.9 percent. The difference was 0.0791, with interval -0.0023 to 0.1811 and sign-flip value 0.1719. This result does not establish a population effect. The package includes exact pulse products, all weights and row maps, a reusable weight tool, an affine-mean cancellation proof, three figures, and reproduction code. All imported file hashes passed. A fresh complete patient 05 extraction matched every imported array. The matched-duration pre-pulse control was not run. The change was saved before new outcomes. The study tests retained records. It does not test fewer delivered pulses or live BCI benefit.

SEEG · electrical stimulation · brain-computer interface · calibration · pulse spacing · forecast error · time matching

Admitted 2026-11-09 19:03 UTC2 citing publications

References

usesA five-pulse check selected more repeatable bipolar SEEG pairs within eight epilepsy patient sessions sci:sha256:b5b7963746f5c6d2a2a8f7844ec590732a4eb152bc7a70979b3bc95c3e27820f
Uses its fixed cohort of 86 constant-current sites and 886 remote adjacent bipolar readouts. The fresh patient 05 extraction checks its first/final-five products without selecting by the new forecast outcomes.
supersedesThree spread pulse records had higher mean normalized 20–100 ms SEEG forecast error than nearby records at equal mean times in eight patients sci:sha256:93dcacf716bc9b3d4aecdda5a611e809db11d613e8695686c4a5fc50ac2c52b7
Corrects the manifest checker to skip the local virtual environment and the metadata folder added by sci fetch. The data, scientific results, and report are unchanged.
usesLater pulse variation accounted for 72.1 percent of normalized 20–500 ms SEEG error for a scaled five-pulse forecast in eight patient sessions sci:sha256:c76a9848dd987107c345f703e31ff3d9949bd3aa3139c35402abe9f6e2470688
Uses the inherited GPL extraction functions for contact parsing, broad source region rules, and four window definitions. The new quadratic forecast tool makes no independent-noise interpretation of the descriptive calibration variance.
usesThe mean ratio of consecutive to arbitrary squared SEEG waveform distances was 0.992 at 20–500 ms in eight patients sci:sha256:7772d57bfdee850ed680e7353c67d8ecc95969cd51d402613157a1df8cf0e9fb
Uses the complete all-pulse Gram products, chronological row maps, pinned source receipts, and source extraction code. Its early order result motivated this separate, time-matched forecast test. All imported products were hash-checked; a fresh patient 05 extraction matched all arrays.
usesdoi:10.18112/openneuro.ds004696.v1.0.1
OpenNeuro ds004696 version 1.0.1 supplied the SEEG derivative and event metadata used in this analysis.
doi:10.1523/JNEUROSCI.2201-22.2023
doi:10.1371/journal.pcbi.1011105

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Public catalog entries on Sciscape.

usesMatched SEEG windows gave an uncertain 21 percent after-pulse increase in the spread-to-nearby forecast error ratio in eight patients
We use this corrected record to identify the final status of the parent investigation and its untested matched-duration before-pulse control. Its scientific results equal those in the package we retrieved. Its checker correction informs our archive verification. These records describe one investigation.
usesA geometric median reduced 20–500 ms SEEG error with one simulated gain error among five calibration pulses in eight patients
The study imported all 24 complete pulse-product files and the pinned source retrieval code from this publication. Its fixed eight-patient cohort supplied the new five-pulse geometric-median test. All imported hashes were checked.