This is an older version of Caret, and it is a very minor problem. For some reason, the first of the 12 Buckner subjects that went into the PALS_B12 atlas had a deformed fiducial surface with some spikiness -- a problem that is fixed by a small number of smoothing iterations after registration. This occurred with all but the first subject. And you never map just to the first subject. You map to either the average fiducial surface or to all 12 subjects' surfaces, and then average the result. So these small spikes have negligible effect on those results.
This was fixed in February 2011, Caret version 5.62. By any chance are you using the older version due to problems with dynamic libraries in the later version? Your registration form says "Linux" for the OS. I am just curious. On Nov 6, 2011, at 9:27 PM, Kirstie Whitaker wrote: > Hi Everyone, > > Firstly, I'm very sorry if this question has been answered elsewhere - I just > joined the mailing list today. I haven't found my answer in the archives but > please feel free to point me to the best search term if this has already been > covered! > > When I open up the > Human.PALS_B12.LR.MULTI-FIDUCIAL_FLIRT_fMRI-MAPPER.B1-12.RIGHT.73730.spec and > Human.PALS_B12.LR.MULTI-FIDUCIAL_FLIRT_fMRI-MAPPER.B1-12.LEFT.73730.spec > files (I have fMRI data processed in FSL that I'd like to display using > caret) the left hemisphere looks very "grainy" while the right hemisphere > looks smooth. (I've attached jpegs of the medial images of these two > hemispheres.) > > Is there anything I can do to fix this: make the left hemisphere look just as > good as the right? > > I'm using caret v5.616. > > Thank you so much, > > Kx > > -- > THANK YOU FOR ALL YOUR DONATIONS! > I did it! I rode for the third time from San Francisco to LA at the > beginning of June. I've now raised around $10,000 for AIDS/LifeCycle and I > couldn't have made such a difference to my friends' lives without all your > support. Thank you! > ----------------------- > Kirstie Whitaker > Doctoral Candidate > Cognitive Control and Development Laboratory > Helen Wills Neuroscience Institute > University of California at Berkeley > 134 Barker Hall, MC 3190 > Berkeley, CA, 94707 > tel: 510 684 2456 > web: bungelab.berkeley.edu > > <medial_left.jpg><medial_right.jpg>_______________________________________________ > 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
