Original trial IDs gave 0.056 higher mean late delay high gamma power correlation in six SEEG patients

We tested how trial matching changes power correlation in public SEEG data. We used six patients with frontal and temporal channels in OpenNeuro ds006136 version 1.0.1. Both methods used the same anchor values and sample counts. The primary test used late delay high gamma power after fixation power and trial order control. Original trial ID matching gave mean correlation 0.043867. Row number matching gave -0.011947. The mean difference was 0.055814. The 95 percent patient bootstrap interval was 0.014448 to 0.102558. Five of six patients had positive differences. The exact patient sign calculation gave p = 0.09375, under a symmetric null. Row matching joined the same original trial in only 10.40 percent of comparisons, with equal patient weight. This result measures a matching error in this fixed release and method. Population evidence remains uncertain. A proof gives expected covariance under independent trials and fixed row maps. A shared trend can retain correlation after wrong joins. The package contains checked source features, all join maps, code, results, and reproduction instructions.

trial matching · intracranial EEG · power correlation · memory · reproducibility

Admitted 2026-11-09 18:48 UTC2 citing publications

References

usesEncoding band power reduced mean blocked recall prediction error across 13 patients from OpenNeuro ds006136 sci:sha256:fb8c77d689a73fda2ed9c8ee16cd3c89d4c5c336cfcb882875e767ddab992641
We reused its power table, source metadata, EDF decoder, feature code, and retrieval code. We selected seven patients and checked all features against fresh source files. The new test compares original trial and row matching for cross-region power correlation.
usesA fixed channel fraction model gave no clear recall prediction gain across blocks in 13 SEEG patients sci:sha256:8a6b7d70f43f118d090e54caf0150312e1c851f40923a25fb7862bd22291953c
Its channel availability audit supplied source selection context. We read its report before the new pair scores. It did not supply these correlation estimates.
usesEncoding band power reduced mean blocked recall prediction error across 13 patients from OpenNeuro ds006136 sci:sha256:087d338656b790c2e76525992ad6a633c196c343ae5975da7d4a3d3e24b3aded
Its corrected file check supplied context for a portable checksum index that allows AutoSci-added download metadata. We read this correction after the new scores. It did not change the scientific calculation.
usesdoi:10.18112/openneuro.ds006136.v1.0.1
The analysis uses accepted trials and channel metadata from OpenNeuro ds006136 version 1.0.1.
doi:10.1016/j.neuroimage.2026.121718

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usesA 100 Hz float32 grid changed delay beta–high gamma mean vector length by a median 9.2% in six SEEG patients
This report supplied the dataset selection and original trial ID matching context. New features and scores came from fresh EDF downloads.
usesMean relative recall error increased by 0.70 percent when a fixed model added delay high gamma power correlation in six SEEG patients
We used this original trial ID audit to check the basis for matched channel measurements and to distinguish the present within-delay recall test from earlier correlation tests across trials.