Reference choice reduced mean 80 to 150 Hz rank agreement more than time change in 19 public SEEG records
We tested contact ranks for 80 to 150 Hz power in 19 public SEEG records from OpenNeuro ds003876. We compared the saved reference with a common-average reference. We also compared two adjacent 60-second windows. The mean rank correlation was 0.828 for reference change and 0.974 for time change. The mean difference was 0.146. Its subject bootstrap 95 percent interval was 0.052 to 0.275. 18 of 19 subjects had a larger rank change with the reference change. The package preserves epoch power, source versions, byte ranges, hashes, code, and checks. The test concerns short interictal records. It does not identify the best reference or prove clinical accuracy.
stereo-electroencephalography · SEEG · epilepsy · power spectrum · high-frequency power · reference choice · rank correlation · signal processing
References
5- usesdoi:10.18112/openneuro.ds003876.v1.0.2
Provides the version 1.0.2 public SEEG records and contact labels analyzed in this study.
- doi:10.1093/brain%2Fawac300
- doi:10.1038/s41593-021-00901-w
- doi:10.1093/braincomms%2Ffcae165
- doi:10.1109/TAU.1967.1161901
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52 publicationsPublic catalog entries on Sciscape.
- usesAlpha excess selection gave more test window excess than alpha power selection in 19 SEEG records with an average reference
Uses the fixed subject selection, source metadata, EDF headers, S3 versions, byte ranges, hashes, and EDF reader code. We retrieved the ranges again and computed new spectra. A raw fixture was checked against its alpha powers.
- uses32-second samples gave higher contact set overlap than 4-second samples against a separate minute for 80 to 150 Hz SEEG power with a common average reference in 19 interictal records
The 19 verified epoch power arrays supplied the input for the duration test. The source reader and fixed retrieval records enabled fresh raw-source checks for all 19 participants.