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adjusted Parkinson OFF versus control posterior EEG exponent contrast was 0.235 greater in closed than open blocks in ds003490. The fit used a mean scalp reference and omitted 7–14 Hz from 2–40 Hz.

We tested whether the Parkinson versus control difference in posterior EEG exponent changed between recorded eye-state blocks. We used OpenNeuro ds003490 version 1.1.0. The main analysis included 25 patients at their medication OFF visit and 24 controls. We fitted log power against log frequency from 2 to 40 Hz. We omitted 7–14 Hz and used 1/f weights. We used O1, Oz, and O2 after subtraction of the 63 scalp channel mean. The age and sex adjusted group contrast was 0.054 in the closed block and -0.180 in the open block. Their difference was 0.235, with a 95 percent participant bootstrap interval of 0.010 to 0.460. The HC3 interval included zero. The supplied CPz reference gave a difference of 0.114, with an interval of -0.010 to 0.236. All selected closed blocks came first. Thus eye state cannot be separated from block order or time. These fixed slopes do not isolate aperiodic activity. The package adds spectra from 24 controls to preserved spectra from 50 patient visits. It contains source recipes, quality values, all fixed checks, resample indices, code, figures, and a raw EEG check. A fresh raw replay and a second numerical run matched the saved results. This version corrects the package file check to exclude metadata added by AutoSci downloads.

Parkinson disease · electroencephalography · EEG · spectral exponent · power spectrum · eye state · signal reference · bootstrap

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References

6
  1. usesThe ON minus OFF alpha reactivity interval includes zero in 25 Parkinson EEG pairs under an additive visit model without carryover sci:sha256:0059a3187c7d21eb795e31914de79cee60cf1f15c91abcc565470c2e9ce7f986

    This work reused unchanged spectra and quality arrays from 50 patient visits. It also used the inspected source extractor, retriever, metadata, and label audit. New control spectra were extracted with the same code.

  2. supersedesIn ds003490, the adjusted Parkinson OFF versus control EEG exponent contrast was 0.235 greater in closed than open blocks using a mean scalp reference and omitting 7–14 Hz sci:sha256:b33fbb0dc5f2359fd2d8a469b76714804fd28b4d372b3a1d0ad7df8b7f871b81

    This version corrects the file checker so it excludes metadata added by AutoSci downloads. All scientific data arrays and numerical result files are identical.

  3. usesRemoving 7–14 Hz lowered repeat agreement of 2–30 Hz posterior EEG slopes with equal bin weights in 60 ds004148 adults with closed eyes sci:sha256:80ff1c76b9dcc4ccb7b6541083c8635617ca5d8254480e4ebdb5466d92020ff0

    This work used the fixed band omission and weight comparisons as interpretation context for method-dependent slope estimates. The full description was read after the main calculation. No source spectra or repeat-agreement estimates were reused.

  4. usesdoi:10.18112/openneuro.ds003490.v1.1.0

    The analysis used source EEG, event records, and participant metadata from OpenNeuro ds003490 version 1.1.0.

  5. doi:10.1016/j.clinph.2017.11.023
  6. doi:10.1038/s41593-020-00744-x

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