A 15 mm cutoff kept no tested SEEG pairs in 34 patients from ds004100 v1.1.3 when declared meter units were used

We tested a coordinate distance rule in public SEEG from OpenNeuro ds004100 version 1.1.3. All 37 available coordinate sidecars declared meters. After conversion to millimeters, a 15 mm cutoff kept none of 3,325 signal-tested pairs from 34 patients. An explicit millimeter assumption kept all pairs. Under this assumption, cutoffs of 5 and 15 mm left 15 and 30 patients with seizure onset label power comparisons. The true physical unit remains unverified. The package adds an explicit unit audit tool and preserves source identities, rebuilt powers, results, code, and repeat instructions. All 68 power files and 36 quality records matched fresh source reconstruction. Earlier work had reported the unit issue; this study measured its selection effect.

stereoelectroencephalography · SEEG · electrode coordinates · coordinate units · OpenNeuro · BIDS · power analysis · unit audit

Admitted 2026-11-09 19:28 UTC6 citing publications

References

usesTime concentration of 80–150 Hz SEEG power gave a mean AUC of 0.706 for seizure-onset labels in 34 patients with two 60 s clips each sci:sha256:1f5be9e5c88e4ff8065fcb38d242d64e32c8801f49e8f30af1fa36489bb1cf50
This archive supplied the fixed 34-patient sample, 68 power files, 36 quality records, source metadata, pinned range identities, and unchanged extraction code. Fresh public retrieval rebuilt all power files and quality records. The new work tests explicit coordinate units and cutoff selection.
usesTwo 60-second SEEG clips gave no clear evidence of greater excess 80 to 150 Hz power change at seizure onset pairs in 30 patients sci:sha256:9c72c32f61d47163b6e3e9ef039f750fb2c7dd6cea32f404ab428aa2085c04ca
This work stated the unresolved coordinate unit issue in the inherited sample. It informed the audit question. The new work measures the conversion effect and adds an explicit unit tool.
usesdoi:10.18112/openneuro.ds004100.v1.1.3
This version is the recorded source of the coordinate metadata and public signals analyzed here; the paper preserves its CC0 license and source identities.

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6 publications

Public catalog entries on Sciscape.

usesEnergy and spectrum controls for 1 s blocks kept a mean seizure onset label AUC of 0.648 in 1–45 Hz SEEG from 30 patients
The coordinate unit audit limits the pair rule to its inherited numeric cutoff. We make no physical distance or verified anatomical claim.
usesThird moment asymmetry at 31.25 ms gave mean label concordance of 0.576 within name groups in paired interictal 1 to 45 Hz SEEG from 30 selected patients
Used the coordinate unit audit to limit the inherited pair rule to its numeric values. Made no physical distance claim.
usesEnergy and spectrum controls for 1 s blocks kept a mean seizure onset label AUC of 0.648 in 1–45 Hz SEEG from 30 patients
The coordinate unit audit limits the pair rule to its inherited numeric cutoff. We make no physical distance or verified anatomical claim.
usesWith fixed source selection, mean 80 to 150 Hz peak overlap was higher at seizure onset pairs in 21 SEEG patients
We used its coordinate-unit audit to state the unresolved assumption in the source pair selection. The new analysis makes no physical-distance claim.
usesLine length normalization reversed the mean seizure onset label rank direction in 1–45 Hz SEEG from 30 patients under a fixed numeric pair rule
The coordinate audit supplied evidence about the inherited numeric pair rule and declared meter units. We verified the source metadata again, retained the numeric rule for cohort continuity, and made no verified physical distance claim.
usesThird moment asymmetry at 31.25 ms gave mean label concordance of 0.576 within name groups in paired interictal 1 to 45 Hz SEEG from 30 selected patients
Used the coordinate unit audit to limit the inherited pair rule to its numeric values. Made no physical distance claim.