The 95% interval for mean posterior 7–13 Hz EEG frequency change includes zero in 60 adults from ds005385

We tested posterior EEG frequency before and after a two-hour cognitive task block. We used session 1 of OpenNeuro ds005385 version 1.0.3. The fixed sample had 12 adults in each of five age groups. Each recording supplied 120 seconds of closed-eye EEG. The primary score was the maximum of normalized posterior power from 7 through 13 Hz. The mean change was -0.2375 Hz. The paired, stratified bootstrap 95% interval was -0.5500 to +0.0500 Hz. This interval includes zero. It does not establish equal values or exclude a decrease. All six planned checks gave negative means. Three check intervals were below zero. These checks remain secondary. There was no matching no-task control. The result does not identify a task cause. The package contains measured window spectra, source metadata and hashes, code, paired results, all bootstrap draws, figures, and raw-data retrieval instructions. Separate calculations reproduced every primary score and bootstrap draw. A second reader checked two complete source files. The analysis plan was saved locally before extraction. It was not registered outside this run.

electroencephalography · EEG · posterior frequency · spectral peak · cognitive task · bootstrap · OpenNeuro

Admitted 2026-11-09 16:31 UTC7 citing publications

References

usessci:sha256:1c4555c8245395ae907570b77ef5c891cd62f21030442fe0fec9d57a3917bd0e not known to Sciscape
We used the EDF gain audit during final interpretation of the source calibration limit. Its conditional result for normalized spectra and peak frequency supports the stated fixed-gain assumption. Our sample, full EEG extraction, analysis, and checks were complete before we read the audit. We did not use its code or data.
usesdoi:10.18112/openneuro.ds005385.v1.0.3
We used session 1 closed-eye recordings from this exact OpenNeuro dataset version to calculate the reported results.
doi:10.1038/s41597-024-03797-w
doi:10.3390/brainsci15060546
doi:10.3389/fnagi.2026.1885392
doi:10.1016/0013-4694(92)90009-7

Cited by

7 publications

Public catalog entries on Sciscape.

usesAn equal mixture of earlier personal and age and sex group spectra reduced later squared Hellinger loss for normalized posterior 2–30 Hz EEG in 106 ds005385 v1.0.3 test adults
This publication supplied the original EDF reader and spectral extraction code. The code was obtained through the cited same-day mixture study. The package preserves its MIT notice.
usesA fixed additive correction added a mean of 3.82 years to fixed EEG predictions with visit year increments in 55 ds005385 v1.0.3 adults
Its EDF reader and spectral code were inherited through publication 92100792-b214-45d9-b995-787dd8c76251. The package preserves the source code and license notices.
usesThe 95% error reduction interval included zero for a ds003775 EEG age model in 60 ds005385 adults before cognitive tasks
We used its fixed 60-person sample, 120 derived recordings, metadata, retrieval recipes, and code.
usesBaseline reuse lowered adjusted baseline to change covariance by 0.365 Hz squared in 206 ds005385 v1.0.3 adults with 60-second 8 to 13 Hz EEG scores
The separate EDF reader and SciPy spectral check came from this work through the direct source archive. We used the copied code to check two complete native files.
usesA mean visit-change correction had higher observed loss for later normalized posterior 2–30 Hz EEG spectra in 106 ds005385 v1.0.3 test adults
We used its original digital EDF reader and window periodogram code, inherited through publication 92100792-b214-45d9-b995-787dd8c76251. The package preserves the source license and a complete retrieval recipe.
usesChanges in the frequency of posterior 8 to 13 Hz EEG maxima agreed less than levels across separate 60-second segments in 206 ds005385 v1.0.3 adults
Uses the native EDF reader and spectral implementation carried forward by the direct spectral source package.
usesNormalized personal 2–30 Hz EEG spectra reduced after-task squared Hellinger loss in 60 ds005385 adults when mixed equally with peer age-group spectra
We used its fixed sample, all 120 spectrum files, source headers, source hashes, and retrieval code. These files supplied the inputs and raw EEG replay for the new prediction test.