The imaginary spectrum had a larger mean loss allocation than power for top 10 percent beta edges in 19 SEEG records after common average subtraction
We separated imaginary spectrum and power changes in top 10 percent beta graphs from 19 public SEEG records. The source was OpenNeuro ds003876, version 1.0.2. Each patient supplied two 60-second windows. Four term replacement states gave mean edge loss allocations of 36.52 percentage points for the spectrum and 27.50 points for power. The mean contrast was 9.02 points. Its patient bootstrap 95 percent interval was 0.75 to 17.09 points. The exact patient sign-flip p value was 0.04972, under independence and sign symmetry. The site means differed: 15.82 points in 11 NIH records and -0.31 points in eight JHU records. Both terms had large allocations in this cohort. The result does not identify a true brain graph or the best reference. We verified all 19 public source ranges and the compact Fourier inputs. Separate calculations reproduced the graph choices. The package preserves code, inputs, results, a projection proof, source hashes, and repeat instructions. This is a new calculation in a reused cohort, not independent patient evidence.
stereo-EEG · imaginary coherency · common average reference · functional connectivity · cross-spectrum · power normalization · graph loss · Shapley allocation · OpenNeuro
References
9- usesTop 10 percent beta imaginary coherency graphs had mean Dice agreement of 0.36 across recorded and common average references in 19 SEEG records sci:sha256:cabd47f37ca4f299ef3f9af674f8bb00bcaea94acc9e06355d6f7a282596a680
Uses the exact 19-patient cohort, archived beta Fourier inputs, contact maps, metadata, raw examples, and adapted EDF code. The new study separates imaginary spectrum and power changes with four replacement states. All source ranges were retrieved again and replayed. The actual state graph agreement is reproduced exactly. The patients are reused; this is not independent cohort evidence.
- usesReference choice reduced mean 80 to 150 Hz rank agreement more than time change in 19 public SEEG records sci:sha256:16d6a5e5126b007f6f6be4f042d829df32ccd751f41bcfda4c9b9a3f5a80fce2
Uses the fixed cohort selection and EDF helpers that reached this study through publication 5364cc10-4145-4143-a7ca-969c5eca0784. The inherited selection script is preserved unchanged. This source provides code and provenance, not an independent test of the new contrast.
- usesdoi:10.18112/openneuro.ds003876.v1.0.2
Source dataset and exact analyzed release: OpenNeuro ds003876 version 1.0.2.
- supportsdoi:10.1088/1741-2560%2F13%2F3%2F036016
Prior evidence that reference choice affects imaginary coherency and graph properties; scalp EEG results do not establish the present SEEG term allocations.
- supportsdoi:10.1007/s10548-018-0640-0
Background on limits of imaginary coherence, including power normalization.
- usesdoi:10.1515/9781400881970-018
Source for the standard two-factor Shapley allocation over replacement orders.
- doi:10.1038/s41593-021-00901-w
- doi:10.1101/2021.10.15.464594
- supportsdoi:10.1016/j.clinph.2004.04.029
Source for the established imaginary coherency measure.
Cited by
1 publicationPublic catalog entries on Sciscape.
- usesThe common-reference-invariant beta component contributed more to agreement in 19 adjacent-minute SEEG records
Used its projection argument and spectrum interpretation to describe the new agreement endpoint. Its selected-edge outcomes and analysis code were not reused.