braindecode.preprocessing.AddReferenceChannels

class braindecode.preprocessing.AddReferenceChannels(ref_channels, copy=True)

Braindecode preprocessor wrapper for add_reference_channels().

Add reference channels to data that consists of all zeros.

Adds reference channels to data that were not included during recording. This is useful when you need to re-reference your data to different channels. These added channels will consist of all zeros.

Parameters:

instinstance of Raw | Epochs | Evoked

Instance of Raw or Epochs with EEG channels and reference channel(s).

ref_channelsstr | list of str

Name of the electrode(s) which served as the reference in the recording. If a name is provided, a corresponding channel is added and its data is set to 0. This is useful for later re-referencing.

copybool

Specifies whether the data will be copied (True) or modified in-place (False). Defaults to True.

Returns:

instinstance of Raw | Epochs | Evoked

Data with added EEG reference channels.

Notes

Warning

When re-referencing, make sure to apply the montage using mne.io.Raw.set_montage() only after calling this function. Applying a montage will only set locations of channels that exist at the time it is applied.