Thanks Matt! We're using it to just coarsely chop up the surface to build phenotypes. What atlas would you suggest that we can easily apply with wb_command -cifti-parcellate?
-Tom On Mon, Jun 4, 2018 at 4:29 PM, Glasser, Matthew <[email protected]> wrote: > Hi Tom, > > This is because FreeSurfer “fits” the aparc to each subject. There is > probably an atlas aparc somewhere inside FreeSurfer that wouldn’t have this > property. That does raise the question of why you are using aparc instead > of one of the more functionally relevant parcellations available in > standard CIFTI space though. Aparc is unlikely to follow task boundaries > much at all. > > Matt. > > From: <[email protected]> on behalf of Thomas Nichols > <[email protected]> > Date: Monday, June 4, 2018 at 2:38 AM > To: HCP Users <[email protected]> > Subject: [HCP-Users] Variation in aparc ROIs between subjects in > 32k_fs_LR space > > Hi folks, > > Sorry if this is a naive question, but looking for a sanity check... > > We're using the aparc segmentations to extract data from the task fMRI > CIFTI files. We believe that we're working in atlas space (32k_fs_LR), so > we were surprised that, when we load two different subjects into wb_view, > the aparc segmentations are different for different subjects. > > See attached images of > 100206.aparc.32k_fs_LR.dlabel.nii & > 100307.aparc.32k_fs_LR.dlabel.nii > The regions are similar but differ slightly, with the white dot showing a > particular bit of the surface that changes from one ROI to another between > subjects. I would have expected this if we were in native space, but not > 32k_fs_LR. What am I missing? > > Thanks in advance! > > -Tom > > PS: A similar question was asked on May 9, titled "about the D-K atlas" > from [email protected] but it hasn't been answered; oddly, while it is in > my inbox I can't find it in the archive. > > > __________________________________________________________ > Thomas Nichols, PhD > Professor of Neuroimaging Statistics > Nuffield Department of Population Health | University of Oxford > Big Data Institute | Li Ka Shing Centre for Health Information and > Discovery > Old Road Campus | Headington | Oxford | OX3 7LF | United Kingdom > T: +44 1865 743590 | E: [email protected] > W: http://nisox.org | http://www.bdi.ox.ac.uk > > _______________________________________________ > HCP-Users mailing list > [email protected] > http://lists.humanconnectome.org/mailman/listinfo/hcp-users > -- __________________________________________________________ Thomas Nichols, PhD Professor of Neuroimaging Statistics Nuffield Department of Population Health | University of Oxford Big Data Institute | Li Ka Shing Centre for Health Information and Discovery Old Road Campus | Headington | Oxford | OX3 7LF | United Kingdom T: +44 1865 743590 | E: [email protected] W: http://nisox.org | http://www.bdi.ox.ac.uk _______________________________________________ HCP-Users mailing list [email protected] http://lists.humanconnectome.org/mailman/listinfo/hcp-users
