Ideal signed scale changes left 84.5 percent of 20–500 ms SEEG error for a fixed five-pulse waveform in eight patient sessions
Public SEEG data show a limit for response forecasts that change only the scale of one early waveform. The test used 886 stimulation-to-readout pairs at 86 sites in eight patient sessions from OpenNeuro ds004696, version 1.0.1. Five early pulses fitted a fixed mean waveform and its scale. Five later pulses tested the forecast in the centered 20–500 ms window. The best signed scale was fitted to each observed later waveform. This ideal change left 84.5 percent of forecast error. The descriptive 95 percent patient bootstrap interval was 80.5 to 87.6 percent. An early-only reliability test kept 76 pairs at 40 sites. Ideal scale changes left 76.7 percent of error in that subset. Exact projection identities split error into scale terms and residual terms outside the early waveform shape. Two fresh source audits matched archived arrays and tables exactly. Independent vector checks and numerical replay passed. The package preserves code, source hashes, compact data, results, four figures, a proof, and reproduction instructions. This is an exploratory reuse of the same public cohort as the cited parent. The ideal scale uses the observed test response. Its bound applies to this fixed waveform and observed pulses. The residual can contain background voltage, noise, timing change, waveform change, and artifact. It does not establish a biological noise floor.
stereoelectroencephalography · SEEG · brain-computer interface · electrical stimulation · waveform forecasting · scale correction · limbic system · projection bound
References
5- usesFive-pulse noise scaling reduced later single-pulse error for 20–500 ms centered bipolar SEEG in eight patient sessions sci:sha256:fbc06ab469d48eac7a6f54dd97cd24ccd9c7c5ca4b0db4d64340536b3e81428a
Uses the five-pulse early noise scale inherited through the direct parent and preserves attribution for that forecast rule.
- usesA five-pulse check selected more repeatable bipolar SEEG pairs within eight epilepsy patient sessions sci:sha256:b5b7963746f5c6d2a2a8f7844ec590732a4eb152bc7a70979b3bc95c3e27820f
Uses the inherited source retrieval, chronological pulse split, corrected source row mapping, and same-block adjacent limbic bipolar pair definitions.
- 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
Reuses its exact chronological ten-pulse products, archived source metadata, extraction code, and first-five noise-scaled mean forecast. The new analysis bounds scale-only improvement and splits errors by projection onto the early mean shape. Its within-test components reproduce the parent variation share.
- usesdoi:10.18112/openneuro.ds004696.v1.0.1
Source dataset: OpenNeuro ds004696, version 1.0.1; the manuscript analyzes processed trial waveforms from its CRP MATLAB files.
- doi:10.1523/JNEUROSCI.2201-22.2023
Cited by
4 publicationsPublic catalog entries on Sciscape.
- usesA fixed update from one SEEG readout increased centered voltage error on other shafts at 20 to 500 ms in eight patient sessions after five calibration pulses
Its fixed-waveform scale limit informed the choice to learn a correction waveform. This study uses an observed separate pair and calibration data; it does not fit a scale to target test voltage.
- usesTwo components from five early pulses captured 29.8 percent of later SEEG variation at 20 to 500 ms after removal of the early mean direction in eight patients
Its ideal scale-adjustment result motivated a test of stable waveform directions beyond the early mean direction. The present endpoint is centered later residual variation, so its denominator differs from the prior forecast-error endpoint.
- usesIdeal fits in the span of five early waveforms left 50.8 percent of fixed SEEG forecast error at 20–500 ms in eight patient sessions
We used its 886 exact ten-pulse Gram matrices, pulse selection, early energy weights, reference forecast, source records, and extraction code. We reproduced its 84.5 percent one-direction result and added a bound for the full five-waveform space.
- usesFive early waveforms retained 61.2 percent of later SEEG energy with measured later coefficients in eight patient sessions
Prior ideal signed-scale bound motivated extension from the early mean direction to five early waveform directions.