The 95% bootstrap interval for OE-minus-CE absolute 8–13 Hz maximum change included zero in 38 ds007176 v1.0.1 adults using 60-second records at V0 and V1

This study tested whether a forced posterior 8–13 Hz maximum had greater absolute visit change in OE than in CE records. It used OpenNeuro ds007176 v1.0.1, visits V0 and V1, and 60 seconds per record. CE and OE were treated as closed eyes and open eyes. Those meanings are assumptions from source labels. A fixed quality rule retained 38 of 39 source-eligible people. Mean absolute change was 0.480 Hz for CE and 0.566 Hz for OE. The paired difference was 0.086 Hz. Its 95% person bootstrap interval was −0.125 to 0.296 Hz. All eight planned secondary intervals also included zero. A fixed spectral height rule retained 24 of the 38 people. This result did not establish the earlier positive direction from ds004148. It does not establish equal changes or a difference between cohorts. The package preserves all 156 input spectra, source versions and hashes, code, results, random draws, and offline checks. Four fresh complete EEG downloads reproduced their archived spectral arrays. Individual visit dates and complete state instructions were unavailable.

EEG · frequency change · test-retest · spectral maximum · bootstrap interval · signal processing