Rename EEG channels

Important

This example requires the meg_wiki package to download the sample dataset. This package can be installed with pip:

$ pip install git+https://github.com/fcbg-hnp-meeg/meg-wiki

The EEG channel are named EEG 001, EEG 002, .. while they actually correspond to a standard 10/05 naming. The EEG channel layouts are available in this section.

from matplotlib import pyplot as plt
from mne import set_log_level
from mne.io import read_raw_fif

from meg_wiki.datasets import sample
from meg_wiki.eeg import load_mapping_64chs

set_log_level("WARNING")
fname = sample.data_path() / "recordings" / "meg-eeg-raw.fif"
raw = read_raw_fif(fname, preload=False).pick("eeg")
raw.info

General

Measurement date	January 01, 2000 00:00:00 GMT
Experimenter	mne_anonymize
Participant

Channels

Digitized points	435 points
Good channels	64 EEG
Bad channels	None
EOG channels	Not available
ECG channels	Not available

Data

Sampling frequency	1000.00 Hz
Highpass	0.10 Hz
Lowpass	330.00 Hz

The mapping between the channel number and name in the standard 10/05 naming convention can be loaded and applied to the MNE object. The EEG channels can be visualize inn their true digitized location through the DigMontage attached.

f, ax = plt.subplots(1, 2, figsize=(16, 8))
ax[0].set_title("Original channel names")
ax[1].set_title("Standard 10/05 channel names")
# plot original channel names
raw.get_montage().plot(axes=ax[0], show=False)
# rename EEG channels
mapping = load_mapping_64chs()
raw.rename_channels(mapping)
# plot renamed channel names
raw.get_montage().plot(axes=ax[1], show=False)
plt.show()

Estimated memory usage: 211 MB