Hi, I am new to Caret and would like to use it to plot results from fMRI and VBM analyses from a single study on a mean cortical surface brain from our participants. I used Dartel and SPM5 for the VBM analyses and I have a mean grey matter image from our group of participants (as .hdr + .img) (dimensions 121 x 145 x 121, datatype int16, values when plotted between 0 and 1.0722, voxel size 1.63 x 1.56 x 1.68).
I have tried to draw contours (white to grey border) from coronal images generated using MRIcro to make a hemisphere from this data. It kind of worked, although I am not sure how to best inflate this surface so that it corresponds to the cortical surface rather than the white to grey border (at the moment some fMRI activations do not get mapped on the surface because there are too far from it in a grey matter thick area). My question is whether there is any using Caret that I could generate the cortical surface automatically from my mean image? The mean image is quite neat (I could send it if necessary). I have seen options to segment structural images, but I am wondering whether there is a way to step in the process at a later stage with this mean grey matter image. Thanks for your help! Iroise _______________________________________________ caret-users mailing list [email protected] http://brainvis.wustl.edu/mailman/listinfo/caret-users
