Abnormally Elevated Gamma-Band and High-Frequency Candidate Features in Repeated EEG Sessions

This dataset documents repeated abnormal high-frequency features observed across consumer EEG meditation recordings, including elevated gamma-band structure and candidate 80-90 Hz activity. The release is designed for independent review by neurotechnology, EEG, signal-processing, contemplative neuroscience, and citizen-science communities. These recordings are unusual relative to ordinary consumer EEG expectations, but this release does not claim definitive neural origin, clinical significance, or proof of a novel mechanism. The purpose is to publish the raw data, metadata, checksums, and reproducible analysis materials so that others can evaluate whether the observed features reflect neural activity, physiological state-linked artifacts, device/environmental effects, or a mixed signal source.