FNIRS Tutorial - Does not display visualization of 3D Montage

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1
  • MNE version: e.g. 1.7
  • operating system: Windows 11
  • Python 3.12

I am trying run the code available from the tutorial for the same data.
https://mne.tools/stable/auto_tutorials/preprocessing/70_fnirs_processing.html

Viewing location of sensors over brain surface

Section does not shows the montage. I see a 3D brain popping up, but no sign of channels or any optodes (sensors).

Code mentioned below.

subjects_dir = mne.datasets.sample.data_path() / “subjects”

brain = mne.viz.Brain(
“fsaverage”, subjects_dir=subjects_dir, background=“w”, cortex=“0.5”
)
brain.add_sensors(
raw_intensity.info,
trans=“fsaverage”,
fnirs=[“channels”, “pairs”, “sources”, “detectors”],
)
brain.show_view(azimuth=20, elevation=60, distance=400)

2

Is there any error popping up? I just tried to run the code in MNE 1.7 on Windows 10 going line by line, and for me, it shows the the channels as indicated by the tutorial.