Regarding the connections, this is something we're working on, and I don't think we have anything ready for public release. If you have something in volumetric form, you could display it, and you could view surface and volume together, varying the opacity, but I suspect you have something else in mind.
You can plot the ROIs by mapping the paint volume onto one of the atlas surfaces: http://brainvis.wustl.edu/wiki/index.php/Caret:Operations/MapVolumeToSurface You can choose the PALS atlas and use one of the standard scenes in this dataset: CARET_TUTORIAL_SEPT06.zip http://sumsdb.wustl.edu/sums/archivelist.do?archive_id=6595030 ... or you can map to one of our mean midthickness "fs_LR" surfaces in FNIRT space (i.e., actually mni152, but fnirted that way, rather than flirted or SPM'd that way). While these surfaces align better with the Harvard-Oxford atlas, we haven't yet released standard scenes datasets for the fs_LR surfaces. It's among the many items on our do-list. You might find a figure in this paper that has surfaces like the ones you want to use: Van Essen, D.C., Glasser, M.F., Dierker, D., Harwell, J., and Coalson, T. (2011) Parcellations and hemispheric asymmetries of human cerebral cortex analyzed on surface-based atlases. Cerebral Cortex doi: 10.1093/cercor/bhr291. http://cercor.oxfordjournals.org/content/early/2011/11/02/cercor.bhr291.full.pdf+html Those datasets are here: HUMAN_ATLAS_CC11 http://sumsdb.wustl.edu/sums/directory.do?id=8286149 Keep in mind that the surface onto which you map your ROI volume need not be the same surface on which you display it; however, both need to be on the same mesh. On Mar 12, 2012, at 10:44 AM, SURIL GOHEL yahoo wrote: > > Hi Experts, > I am learning to start using caret for displaying results from one analysis. > I have set of ROIs defined using Harvard-oxford atlas available through FSL > and i performed connectivity analysis between these ROI -pairs. > After statistics i have group difference where ROI-pairs show difference in > connectivity between two groups. > I am trying to plot this ROIs on a surface and show connections between them > using caret. > > I have been able to create surface based data from the volume but i am not > being able to show ROIs on the surface and display connections between them. > can anyone please help me about how its done? > -- > -Suril > 973-972-7076 > > > _______________________________________________ > caret-users mailing list > [email protected] > http://brainvis.wustl.edu/mailman/listinfo/caret-users _______________________________________________ caret-users mailing list [email protected] http://brainvis.wustl.edu/mailman/listinfo/caret-users
