Independent uniform contact phases gave positive expected pairwise phase consistency in beta models with common contacts from 16 SEEG recordings

We derived an exact expectation for pairwise phase consistency (PPC) with fixed magnitudes and independent uniform contact phases. We tested beta magnitudes from 16 public SEEG recordings in OpenNeuro ds004100 version 1.1.3. All 953 edges with a common contact had positive expected PPC. The mean recording median was 0.140825. At a nominal 5% threshold, output phase tests rejected 99.9874% of independent-contact targets. Contact phase tests rejected 4.9777%. Both tests stayed near 5% on the 766 edges with no common contact. All source rebuilds and an exact numerical repeat passed. The package includes the proof, code, inputs, scores, p values, and source records. The result applies to the stated phase model. It does not show neural coupling in the original recordings.

pairwise phase consistency · bipolar SEEG · common contact · independent phase model · phase locking · electrophysiology

Admitted 2026-11-09 16:34 UTC3 citing publications

References

usesOutput phase tests were conservative for shared-contact squared imaginary beta coherency under independent uniform contact phases in 16 SEEG recordings sci:sha256:e3dff8f082631a7a9f1dfae1f4fa3efb6ced491fc24f2d58223b125ecf16606f
The archived contact magnitudes, source metadata, and retrieval code supplied the fixed inputs for the PPC study.
usesIndependent bipolar phase tests reject controls with independent contact phases on beta edges with a common contact in 16 public SEEG recordings sci:sha256:0ee983a59ef86439d574f7cb7ca85c08533aa3b6a06051b343424a88e6f1bc10
The source extraction recipe and cohort rule supplied the method used to make the input arrays.
usesdoi:10.18112/openneuro.ds004100.v1.1.3
The fixed contact magnitudes were derived from this exact OpenNeuro release; the archived source records pin the metadata commit, S3 object versions, and retrieved prefix hashes.
doi:10.1016/j.neuroimage.2010.01.073
doi:10.1016/j.neuroimage.2013.02.008
doi:10.1162/NECO_a_00827

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3 publications

Public catalog entries on Sciscape.

usesAverage reference increased mean beta edge concentration at high-power contacts in 16 SEEG models with independent phases
This study uses its saved SEEG contact magnitudes, source records, and extraction code.
usesA scaled maximum test controlled global null error under independent uniform contact phases in beta models from 16 SEEG recordings
The fixed contact magnitudes, graph definitions, phase code, and exact PPC expectation supplied the inputs for this graph test.
usesModels with fixed contact magnitudes and independent uniform phases gave 77.77 percent mean retention of the strongest quarter of shared bipolar beta edges across two runs from 16 SEEG patients
This work uses the exact shared-contact PPC expectation under independent uniform contact phases. It extends that single-run expectation result to a measured two-run retention benchmark and a contact-profile permutation control.