[Mne_analysis] Discrepancy between visualization of freesurfer label and its vertices

Pavan Ramkumar pavan at neuro.hut.fi
Wed Dec 22 06:25:14 EST 2010
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Dear MNE users,

I observed a discrepancy between

(1) the visualization of Freesurfer generated anatomical labels (*.label
files) which can be loaded in mne_analyze with Labels --> Load Label

AND

(2) the actual vertices that the label contains. I visualize these
vertices by reading in the label file with mne_read_label_file() in MATLAB
and writing out an *.stc file with all vertices common between the label
file and the vertices in the source space set to '1' and all the other
source space vertices set to '0'.

To be specific, I'm having trouble with the 'S_central-lh.label' file
generated by Freesurfer 4.1.0. The visualizations (1) and (2) should look
the same, but I notice that (2) also contains a couple of vertices on the
medial wall.

Has anyone else observed this before? How am I mistaken? Thanks for your
comments.

Kind regards,
Pavan



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