Extract power bands from epochs

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:question: If you have a question or issue with MNE-Python, please include the following info:

  • MNE version: e.g. 0.24.0
  • operating system: e.g. macOS 12 / Windows 10 / Ubuntu 18.04

Is there any function to extract frequency bands from epochs not the raw data?

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Hello,

The PSD functions, multitaper or welch can both be run on Raw,Epochs or Evoked object.
See for instance the argument for multitaper in the version 0.24

https://mne.tools/0.24/generated/mne.time_frequency.psd_multitaper.html?highlight=psd#mne.time_frequency.psd_multitaper

Mathieu

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Are you actually using version 0.24, or is that just the placeholder text? If you’re on the current stable version (1.2) you can use epochs.compute_psd() to get a Spectrum object, and then psd, freqs = spectrum.get_data(return_freqs=True) . From this you can figure out which bin(s) contain the frequencies of interest, and then average those bins together to get average power in the band.

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