Hi Carissa, The PALS surfaces are available in several versions of stereotaxic space:
http://brainvis.wustl.edu/help/pals_volume_normalization/ Typically, functional connectivity seed regions are displayed as foci, but the rs-fcMRI maps are often displayed as metric maps, too. It often depends on how many you're trying to display at the same time. If you are depicting networks, and several seeds belong to a network, then foci is pretty much the right call. If you're focusing on one, then a metric map might be better. And even with two, you can sometimes depict one metric map with the borders of another thresholded map overlaid on top of it, to show overlap. I suspect you're going to be mapping stereotaxic foci, so I want to make sure you have seen these tutorials: http://sumsdb.wustl.edu/sums/stereotaxictocaretfoci.do;jsessionid=nle6x9hz71 (Forgive me if I've pointed you there already. I get users mixed up over time. There are a lot of you.;-) Donna On Mar 16, 2012, at 10:10 AM, Carissa Philippi wrote: > Hello, > > I am a new CARET user. I would like to create a figure to display a > number of seed regions of interest (belonging to different attention > networks) that I used for a resting-state functional connectivity > analysis. I looked into the tutorials available for displaying foci as > well as for mapping volumes to surfaces. However, I'm not sure which > option is best for the purpose of creating the figure I mentioned > above. > > I currently have all of the spherical (6mm radius) seed regions of > interest in Talairach space. I would appreciate your recommendation > for the best way to create ROIs for display in CARET. Would you > recommend converting these to PALS coordinate space, to be displayed > on the PALS surface? If so, what is the best way to create ROIs? By > creating foci or mapping volumes to surfaces? > > Alternatively, is there a way to convert and display another > standardized atlas (e.g., MNI or Talairach) to be displayed in CARET? > > Thank you very much in advance for your help. > > Best, > > Carissa > > -- > Carissa L. Philippi, PhD > Postdoctoral Research Scholar > Department of Psychiatry, University of Wisconsin-Madison > 6001 Research Park Blvd > Madison, WI 53719 > Email: [email protected] > _______________________________________________ > 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
