[FieldTrip] ft_sourceinterpolate question
Seymour, Robert (Research Student)
seymourr at aston.ac.uk
Thu Apr 26 01:48:31 CEST 2018
It seems like you are using the HCP Glasser atlas ('A multi-modal parcellation of human cerebral cortex')? The atlas presented as part of the network analysis tutorial is designed for a cortical mesh with 8004 vertices, rather than the 15002 you are using. I don’t believe ft_sourceinterpolate can currently cope with the surface-based transformation upwards from 8000—> 15000 vertices.
To use the HCP atlas you will need to downsample the original 32k atlas in fs_LR space to 15000 space and transform to whichever standard-brain template you are using. This is non-trivial and requires some functions from the HCP project (e.g. wb_command which can be found here: https://www.humanconnectome.org/software/workbench-command).
If your mesh is created using Freesurfer you can use this script here:
If the mesh is not constructed using Freesurfer it will be tricker & I would recommend contacting the HCP mailing list.
Robert Seymour (Aston Brain Centre & Department of Cognitive Science, Macquarie University).
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