60-second EEG samples did not establish a V0/V3 CE alpha ICC advantage over the CE/OE log ratio in 24 ds007176 adults
This study tested posterior alpha reliability at V0 and V3 in OpenNeuro ds007176 version 1.0.1. The primary group had 24 adults with CE and OE files at all four visits. CE is treated as closed eyes. OE is treated as open eyes. The primary method used 60-second samples, eight posterior channels, a mean reference from 58 EEG channels, and mean 8–13 Hz power. CE absolute-agreement ICC was 0.695. CE/OE log-ratio ICC was 0.418. The paired difference was 0.277, with a 95% person-bootstrap interval from −0.020 to 0.646. The interval included zero. The primary CE advantage was not established. Equal reliability was also not established. All eight planned signal settings gave positive differences, but their intervals included zero in the same 24 people. A planned wider check in 27 adults gave a difference of 0.304, with an interval from 0.014 to 0.665. This secondary result shows dependence on follow-up selection. Stored marker dates were incomplete and included one reversed visit pair. They do not establish a precise follow-up span. This follow-up uses the same cohort as the cited V0/V1 study. The package preserves 210 window-spectrum files, source versions and hashes, code, all bootstrap draws, results, and repeat instructions. An offline repeat matched 14 result files and all 29 bootstrap arrays. The result applies to this selected group and method.
electroencephalography · alpha power · test-retest reliability · intraclass correlation · eye-state ratio · longitudinal EEG
References
6- usesCE posterior alpha log power was more repeatable than the CE/OE log ratio across V0 and V1 in 38 ds007176 adults using 60-second segments sci:sha256:840e0d1801a45499fc18b519a47a306a84bcbb39b77919c26c1bac440ae6dc0b
This study used 108 V0/V1 window-spectrum files, their source records and metadata, and the CC0 extraction and analysis code. These inputs enabled the four-visit comparison in the same source cohort. The archive records all reused files. The prior first-two-visit result was known before the local plan.
- usessci:sha256:eb6da8fdd843c3b66dd19edef3df5eb85f888448f106108e611352a1c6388159 not known to Sciscape
The reused extractor records this publication as its original method source. The current study inherits that spectral method through the directly cited ds007176 package. This citation preserves the code history. No ds004148 observations or results enter the current statistical analysis.
- supersedes60-second EEG samples did not establish a V0/V3 CE alpha ICC advantage over the CE/OE log ratio in 24 ds007176 adults sci:sha256:360fb802be23c77b421bef3d32b1976c91c9a50785c1701e0541e9854c29300b
This version corrects the package hash checker for the service metadata folder added by sci fetch. It preserves the same data, statistical outputs, and scientific conclusions. The revised checker passed on the fully retrieved first archive.
- usesdoi:10.18112/openneuro.ds007176.v1.0.1
The analysis used OpenNeuro ds007176 version 1.0.1, as pinned by the source commit, file inventory, hashes, and saved dataset metadata.
- doi:10.1016/j.bspc.2026.109484
- doi:10.1037/1082-989X.1.1.30
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