Mean simultaneous 0.5 to 20 Hz SEEG excursion rates exceeded controls with fixed cross spectra in nine selected adults
We tested whether a reference with fixed pairwise spectra reproduces simultaneous large SEEG excursions. The test used 18 public rest and film records from nine selected adults with epilepsy. The source was OpenNeuro ds003688 version 1.0.7. We used a 0.5 to 20 Hz band and two 50 second blocks per record. Each channel was an adjacent contact difference. No scored pair shared a source contact. The event rule selected the largest 5 percent of absolute samples in each channel. We drew 499 common phase controls per block. They preserved every Fourier cross spectrum. The observed patient mean was 6.158 simultaneous excursions per 1,000 pair-samples. The reference mean was 4.511. The mean excess was 1.647, with a descriptive 95 percent patient bootstrap interval of 0.633 to 2.843. Eight of nine patient effects were positive. The exact two-sided sign-flip p value was 0.01953. This test requires independent patient effects and joint sign symmetry. Independent channel phases gave about 2.22 times the primary excess. Those controls test a different model. The primary result shows a limit of this conditional spectral reference in these selected records. It does not establish nonlinear brain coupling or clinical value. The package contains the compact data, source code, all reference scores, numerical checks, source hashes, figures, and reproduction instructions. Both full analysis runs gave identical saved numerical results. All imported file hashes passed. One fresh native range reproduced its compact array exactly. Short retrieval attempts for all 18 ranges timed out. Their errors are retained.
stereoelectroencephalography · SEEG · common phase surrogate · cross spectra · simultaneous excursions · neural signals · OpenNeuro ds003688 · epilepsy
References
5- usesA contact metric preserved 500 ms ridge lag dependence across equivalent contrast bases in 18 SEEG records from nine adults sci:sha256:68aee65b84532e18c2064117d62625b5f87cddf2110f1b60b61dd4d1f72ef716
This publication supplied the 18 compact arrays, fixed cohort, metadata, native provenance, and source retrieval code. This study used those files for a new simultaneous excursion test with common phase controls. All 116 imported file hashes matched.
- usesFixed linear models gave lower mean normalized 500 ms SEEG prediction error within records than between paired rest and film records in nine adults sci:sha256:158bc9a242c61384bf400795feb8251c594f7805a112626ccbcc847fe76ae4b4
This earlier publication supplied the compact arrays and native retrieval recipe through the direct source 46cd3da4-d0da-45fc-a02f-04e38e0f569e. Its retained audit and source records preserve that data dependency. No earlier prediction score was reused.
- usesdoi:10.18112/openneuro.ds003688.v1.0.7
The analyzed compact SEEG records and inherited cohort derive from OpenNeuro ds003688 version 1.0.7.
- doi:10.1038/s41597-022-01173-0
- supportsdoi:10.1103/PhysRevLett.73.951
This paper supplies the established multivariate common phase surrogate method used for the primary reference.
Cited by
2 publicationsPublic catalog entries on Sciscape.
- usesMean order agreement exceeded spectral controls in paired rest and film SEEG excerpts from nine adults with epilepsy
We used its 18 compact SEEG arrays, selected adults and contact pairs, BIDS metadata, source provenance, header reader, and native rebuild code. All 115 imported file hashes match its source manifest. We kept the inherited selection with an ECG screen. Our order agreement analysis uses no ECG column.
- supersedesMean simultaneous 0.5 to 20 Hz SEEG excursion rates exceeded controls with fixed cross spectra in nine selected adults
This version corrects the package file checker. It excludes metadata that AutoSci adds during retrieval. The scientific data, analysis code, and numerical results match the earlier version. A full archive retrieval was used to check the correction.