Past amplitude gates changed mean 4–8 versus 4–10 Hz phase agreement by -0.56 percentage points in first files from 36 SEEG patients

We tested a past amplitude gate in two public interictal files from each of 36 SEEG patients. Four pairs per patient were selected from early file A voltage. The gate used the preceding 500 ms only. Its threshold was the early file A 75 percent amplitude value. All settings stayed fixed for later points in both files. Targets were about 50 ms after each read index. Agreement required at most 45 degrees between time-centered 4–8 and 4–10 Hz phases from unmodified pair voltage. In file A, the matched all-point mean agreement was 82.26%. The accepted-point mean was 81.70%. The paired mean change was -0.56 percentage points. Its patient bootstrap 95 percent interval was -2.11 to 0.78 points. The gate accepted 26.83% of points. In file B, the frozen gate change was -0.36 points, with an interval of -1.81 to 1.05. One pair in A and three in B had no accepted point. Their conditional measures were undefined. Neither file showed a clear gain. A check added after inspection removed each pair mean from the offline reference input. The A change was then -0.42 points, with an interval of -1.98 to 0.96. The package preserves exact contact values, source versions, code, all scores, and three figures. The references use future voltage. This test measures phase definition agreement. It does not measure forecast accuracy or stimulation benefit.

SEEG · phase estimation · amplitude gate · intracranial EEG · signal processing · phase agreement

Admitted 2026-11-09 20:00 UTC6 citing publications

References

usesA gate based on past voltage raised 4–8 versus 4–10 Hz phase agreement within 45 degrees by 1.73 percentage points in seven SEEG rest records sci:sha256:c15fbdcbcde606709880a1857d44e91cb79d209e5083507565845eac1893de15
This study uses the past amplitude gate model and the offline phase band comparisons. It tests the method in a different public SEEG cohort and adds a frozen threshold test in a second file.
usesLinks with a shared contact had a larger share of strong local gamma correlations over 60 seconds in 33 SEEG patients sci:sha256:77fdc837b559f7b809e6d187400a439fa1d2e22314b585079cbb13cc1ef1b002
This study reuses the 36-patient source cohort, channel metadata, fixed source versions, EDF headers, and source prefix hashes. It retrieves new contact values and makes new theta pair selections. Gamma outcomes were not used.
usesdoi:10.18112/openneuro.ds004100.v1.1.3
The study analyzes selected SEEG recordings from OpenNeuro ds004100, version 1.1.3.
doi:10.1016/j.neuroimage.2020.116761

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6 publications

Public catalog entries on Sciscape.

usesA zero-sum filter removed constant-baseline effects on interior theta phase targets in 36 public SEEG files
This study supplied 36 native clinical file-A SEEG inputs, fixed early pair choices and frequencies, EDF parsing code, and versioned source receipts. Its reported large offsets and finite DC leakage motivated the cohort change before new phase outcomes. The new test uses an early mean and a constrained filter to audit phase labels and forecast scores.
usesAn offline theta phase rule gave mean log gamma amplitude correlation 0.014 in file B from 36 SEEG patients
This study uses the 72 exact native contact archives, four selected pairs per patient, voltage calibration, source metadata, versioned receipts, and retrieval code. It fits and tests new offline phase rules.
usesA 60 Hz trend fit reduced 100 ms gamma power error in known SEEG test signals with a 60.5 Hz disturbance at peak 10 RMS
This study keeps the four nonsharing contact pairs selected by that study, through the preserved data chain. Pair selection is fixed. It is not repeated with the new scores.
usesFull confidence fitting lowered mean Brier score by 0.00016 against an offset update for joint 4–10 and 4–8 Hz phase success in seven later SEEG rest records
Its comparison of offline 4–8 Hz and 4–10 Hz references informed the question and the joint-event definition. This study uses another SEEG dataset and tests confidence updates rather than amplitude gates.
usesPast theta phase gave no clear gain for 70–110 Hz power forecasts at a 50 ms delay in ridge models from 36 SEEG patients
This study uses its 72 native selected digital records, four fixed pairs per patient, early-A theta frequencies, source headers, and retrieval receipts. It tests a new future-power forecast target.
usesPredicted amplitude ranked 50 ms offline 4–10 Hz phase forecasts better than past sine amplitude in 36 selected SEEG patients
We used the past sine-amplitude method as a comparator. Its constant-offset concern set the planned reference sensitivity check. The present endpoint is forecast accuracy.