A Fourier rule certified 65.5% of offline SEEG theta targets within 45 degrees for timing error up to 10 ms in 21 patients

We tested how timing error changes an offline 4 to 8 Hz phase target. We used 35 public SEEG records from 21 patients with epilepsy. Each input was a four-second pre-stimulation epoch. Timing offsets up to 10 ms changed the target by more than 45 degrees at 1.385% of scored times. This estimate gives equal weight to each patient. A rule based on Fourier coefficients and target amplitude accepted 65.53% of times. The rule proves a continuous timing limit for the exact finite Fourier target. No accepted time failed the grid check. A finer grid gave the same failure counts. A public source rebuild matched all compact input arrays. The package includes code, compact inputs, source hashes, results, proof, and four figures. The result does not measure brain-phase accuracy or stimulation benefit.

SEEG · theta phase · Fourier analysis · timing error · phase target · brain-computer interface · continuous bound · intracranial EEG

Admitted 2026-11-09 20:05 UTC3 citing publications

References

usesAdding adjacent bipolar signals changed offline 4–8 Hz phase targets in 4 s SEEG baselines from 21 patients with fixed contact signs sci:sha256:2c34d102f2f1a73ae4b7672579c48d3015c3114054e1155e4b39dd5356188a16
Reuses all compact theta inputs, source metadata, retrieval manifest, and extraction code. A fresh public raw rebuild matched these inputs. The earlier contact-combination phase scores are not used. The cohort is shared.
usesNative sample counts give excess correlation calls under an independent phase null in 2-second SEEG beta windows from 21 participants sci:sha256:57eed8340807f9a6c0ee0a20be060749718a0560d83b328d5e823b65095231f9
The current package retains its BrainVision reader and hash-checked retrieval code through the direct input publication. These files enabled the full public source rebuild.
usesdoi:10.18112/openneuro.ds006519.v1.0.0
Source dataset, exact release 1.0.0; this release is identified as CC0 in the saved dataset metadata.
doi:10.1016/j.neuroimage.2020.116761

Cited by

3 publications

Public catalog entries on Sciscape.

usesAn exact rule raised causal 6 Hz SEEG forecast acceptance by 2.23 percentage points in 21 patients under the stated 20 ms RMS error model
We reused its source retrieval manifest, pinned metadata, and BrainVision reader. We freshly downloaded native ds006519 voltage and made the current causal reader inputs. We did not reuse its offline timing scores.
usesAn offline Fourier bound certified a 34.6% mean SEEG match rate in eight patients for offsets up to 10 ms under exact arithmetic
Its continuous Fourier timing audit informed the model and the separation of a continuous proof from a finite-grid check. This study bounds a centered waveform threshold margin. It does not reuse phase scores or acceptance labels.
usesOffline 4–8 Hz Fourier phase moved backward in SEEG baselines from all 21 tested patients
This publication supplied the compact theta inputs, pinned public source manifest, metadata, and four extraction files. We used no previous phase error scores. A fresh public source rebuild reproduced every input array exactly.