[FieldTrip] Issues creating the Glasser atlas for the 8k point mesh

Paolo Belardinelli paolo.belardinelli at gmail.com
Mon Jun 13 15:22:17 CEST 2022


Dear Fieldtrippers,

I was trying to create the Glasser atlas for the 8K mesh exactly in the
same way as it was done here for the 4K:

https://download.fieldtriptoolbox.org/tutorial/networkanalysis/

I found out that the annotation files given with the Glasser paper contain
two unuseful and not declared parcels in the corpus callosum (one each
hemisphere named "???").

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4990127/

I eliminated those and tried to convert the annotation files into .gii with
R. Unfortunately, when using ft_readheadshape for merging the two different
hemispheres into one cortical sheet, I receive an error message that some
field is missing from the gifti file.  (My plan was to then decimate the
label file with the same approach of ft_postfreesurfer script)

Can somebody give me a cue on how the file linked above was generated?

Best wishes,

Paolo

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Paolo Belardinelli, PhD

Center for Mind/Brain Sciences - CIMeC <https://www.cimec.unitn.it/en>

University of Trento
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Phone: (+39)0461-283097
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