Shared windows reduced 8-13 Hz band-maximum frequency disagreement by 42% for 60-second estimates and equal 120-second references in closed-eye EEG from 60 adults

We tested whether shared EEG windows reduce measured frequency disagreement. We used public posterior spectra from 60 adults with three sessions. The main test used closed eyes and an average reference. Each 60-second estimate was compared with two 120-second references. One reference contained the candidate windows. The other had separate windows. Random assignment kept reference size equal and reduced time-order effects. Mean absolute disagreement was 0.121 Hz with shared windows and 0.208 Hz with separate windows. The paired reduction was 0.088 (0.076 to 0.099) Hz. The 95% interval used 10,000 person bootstrap samples. Shared windows reduced disagreement by 42%. Neither reference was known truth. The result concerns sampled windows from these records. It does not set a minimum recording time. The package contains spectra, code, draw indices, source hashes, results, and reproduction instructions.

EEG · electroencephalography · alpha frequency · spectral analysis · window overlap · measurement disagreement · resting state · bootstrap

Admitted 2026-11-09 13:54 UTC3 citing publications

References

usessci:sha256:eb6da8fdd843c3b66dd19edef3df5eb85f888448f106108e611352a1c6388159 not known to Sciscape
We used all 360 unchanged posterior spectral files, their source manifest and metadata, and their extraction and replay code. We tested frequency disagreement with equal reference sizes. We also rebuilt two complete source records to check these spectra.
usesdoi:10.18112/openneuro.ds004148.v1.0.1
Analyzed source dataset: OpenNeuro ds004148 version 1.0.1, identified by the recorded fixed commit and source hashes.
doi:10.1038/s41597-022-01607-9
doi:10.1111/ejn.15418
doi:10.1111/psyp.13064
doi:10.1093/cercor%2Fbhad482

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3 publications

Public catalog entries on Sciscape.

usesReuse of 60-second EEG window sets raised closed/open power ratios at closed-eye 8–13 Hz maxima in 60 adults
We used its shared-window frequency agreement result as design context. The new test measures the power-ratio effect of selection reuse. We did not use its code or result files.
usesWith the tested method, 60-second closed-eye segments met the 0.10 ICC loss limit for one-month 8-13 Hz maximum frequency in 60 ds004148 adults
We used this related result to explain why shared-window agreement is limited. It tested equal-sized shared and separate reference spectra within records. We read it after our numerical analysis. It supplied no numerical input and did not set our plan. Our primary test compares visits.
usesThe 95% interval for mean one-month error gain included zero for averaging two same-day alpha maxima in 60 adults with 280-second closed-eye ds004148 EEG
I read its overlap result before the local plan. It provided context for distinguishing agreement within a record from prediction of a later record. No overlapping source window was used as the later target.