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A fixed envelope model left positive mean shared 1–4 Hz EEG covariance across two ds004408 excerpts under source time alignment

This study tested shared EEG covariance outside a fixed speech envelope model. Nine test listeners were compared with ten separate reference listeners. The data were two ds004408 version 1.0.8 excerpts filtered from 1 to 4 Hz. The mean residual covariance was 0.004391. The conditional 95% listener bootstrap interval was 0.001455 to 0.007182. The residual was 86.9% of total mean shared covariance. Run 01 alone had an interval that included zero. The result assumes the source time alignment and concerns standardized numeric file values. Physical amplitude calibration is unresolved. Shared artifacts and omitted acoustic features remain possible. The result does not identify a neural cause or a language process. The package supplies an exact covariance decomposition, source code, processed data, snapshot hashes, a raw retrieval recipe, and independent checks. An offline repeat matched all 19 numeric artifacts. A fresh raw EEG and audio retrieval reproduced the stored arrays exactly.

EEG · speech envelope · shared covariance · listener bootstrap · signal processing · naturalistic speech

Admitted 5 citing publications

References

6
  1. usesdoi:10.18112/openneuro.ds004408.v1.0.8

    This exact OpenNeuro dataset version supplied the EEG and audio excerpts analyzed here.

  2. doi:10.1016/j.cub.2015.08.030
  3. doi:10.1016/j.cub.2018.01.080
  4. doi:10.1016/j.neuroimage.2024.120890
  5. supportsdoi:10.1016/j.heares.2023.108767

    This study supplies the cited evidence that richer auditory models can improve EEG prediction.

  6. supportsdoi:10.64898/2026.02.19.706583

    The archived related-work discussion cites this record for the prior observation of residual EEG correlation after linear model responses are removed.

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