Longer interpolation gaps raised mean error for known 70 to 150 Hz signals in 20 SEEG records with fixed edges
We tested three fixed linear interpolation gaps in public SEEG from 20 people. Voltage edges stayed fixed. For known signals from 70 to 150 Hz, relative RMS error was 20.10%, 62.87%, and 95.16% for nominal gaps of 3, 6, and 11 ms. These scores use all 82 epoch samples and exact phase mean quantities. The gap scores are identical across records because the sample grid is shared. Early train voltage reduction rose with gap length in every record. Baseline waveform change also rose in every record. Mean full epoch train voltage reduction fell from 70.14% to 59.66%. At 4096/46 Hz, the 11 ms gap kept exactly 100% of phase mean energy but gave 105.9% RMS error. The package contains the proof, a reusable gap tool, three figures, epochs, source hashes, full scores, and reproduction steps. All 140 source hashes and 200 rebuilt arrays passed. Seven repeated text results and 42 frequency arrays matched exactly. These tests do not establish neural recovery or live interface benefit.
stereoelectroencephalography · SEEG · electrical stimulation · signal interpolation · linear interpolation · signal distortion · brain-computer interfaces
References
4- usesClass difference subtraction kept 99.99% of added train rate signal energy through fit and test in 20 SEEG records with fixed edges sci:sha256:8571492326e72da0048c59c0d1454d4216504ae58ddcdcd5da3c4d952fd2e54f
We used its 20 SEEG epoch files, source manifest, and template, extraction, and retrieval code. We rebuilt all epochs before the gap comparison.
- usesRepeatable pulse class differences exceeded baseline at 3 to 15 ms after detected edges in 17 of 20 SEEG recordings sci:sha256:879b5223cbf14d14e8e6ed3642b3968e076bf8d799c75c3c86fea26e328c4ab9
This work supplied the pulse selection, voltage edge detector, baseline match, and channel rules. We used these through publication 503e48fa-7046-495b-b615-b622d6ffc3d8.
- usesdoi:10.18112/openneuro.ds005169.v1.0.0
The analyzed SEEG records came from OpenNeuro ds005169 version 1.0.0; the exact version and source hashes are recorded in the package.
- doi:10.1002/hbm.25749
Cited by
1 publicationPublic catalog entries on Sciscape.
- supportsLinear interpolation reduced 70 to 110 Hz waveform error after repeated 13-sample gaps in baseline SEEG from 20 patients
Our fixed checks found greater linear interpolation waveform error with longer gaps in recorded baseline voltage after a continuous causal 70 to 110 Hz filter. This supports the direction of its known-signal gap-width result. A near-unit group power ratio also occurred with substantial waveform error. The tested bands, gap placement, reference signals, and score units differ. We read this work after our main scores were calculated. We do not reproduce its numerical values or its equal-energy proof.