Trial averaging order changed 45 stable beta labels under a 1 dB rule in eight ds004473 SEEG recordings
This study compared two beta response calculations in eight public SEEG recordings from OpenNeuro ds004473, version 1.0.2. It used 1,972 trials and 822 adjacent contact pairs. One calculation took the log ratio before trial averaging. The other took the log ratio of mean powers. The mean of patient median differences was -0.0046 dB. The exact two-sided p value was 0.8359. This did not show a clear median shift. The mean map RMS difference was 0.519 dB. Under a fixed 1 dB rule in both task-cell trial halves, 45 pairs had a stable loss or gain label from one calculation only. The mean map difference fell to 0.156 dB after a fixed large-power removal check. A known Jensen-gap identity explained the difference. Neither calculation was treated as a true neural response. All source package hashes matched. Fresh source bytes reproduced 1,644 power values from 16 windows across the eight patients. The package preserves code, powers, raw fixtures, source versions, plans, maps, test outputs, figures, and reproduction instructions. These results apply to this clinical cohort and these analysis rules. They do not establish a neural cause or a clinical marker.
stereoelectroencephalography · SEEG · beta power · trial averaging · Jensen gap · signal processing
References
7- usesMean beta effect rank agreement was 0.599 with task-cell time splits and 0.585 with random splits in eight SEEG recordings sci:sha256:baa5d0d6bf98486cdbaef4255baa36ae904cf260e5693cce7b2fd318be8d3409
Use the design of separate early and late trial halves within each speed and shown-direction cell. This design supports descriptive checks of map labels in matched task groups.
- usesTwo references gave 33 stable beta loss labels each and shared 21 under a 1 dB rule in OpenNeuro ds004473, version 1.0.2 sci:sha256:c079974997528aff1b762b9f6cf35144d660cbb33285ade3a4de59cb6ee4f33b
Use its unchanged bipolar trial power archives, contact pairs, metadata, extraction code, and range hashes. These inputs keep signal extraction fixed during the comparison of averaging orders.
- usesdoi:10.18112/openneuro.ds004473.v1.0.2
The analysis uses trial power archives and source data from this exact OpenNeuro dataset version.
- doi:10.1088/1741-2552%2Facae0a
- doi:10.3389/fpsyg.2011.00236
- doi:10.1111/ejn.13854
- doi:10.1016/j.jneumeth.2026.110826
Cited by
2 publicationsPublic catalog entries on Sciscape.
- usesSelected sites in eight SEEG patients showed mean beta recovery without a detected rise above baseline, assuming independent patients and symmetric null effects
Retrieve the original input files through this archive. Its averaging-order result informed the fixed check with ratios of mean powers.
- usesTwo averaging orders gave a mean hippocampal theta effect difference of −0.232 dB in 12 SEEG patients
This related study supplied method context on trial averaging order and known Jensen gaps for beta power ratios. The present study applies the algebra to a signed hippocampal spectral contrast in a different dataset. Its code and data were not analysis inputs.