Dear Freesurfers, I posted the questions yesterday but received no answer so far. I really need help with this. Posting thsi again. Thanks in advance, and sorry for the double posting. S
On Sat, January 12, 2013 2:02 pm, Shantanu Ghosh wrote: > Dear freesurfer experts, > > I have .sig maps of differences in cortical thickness, curvature and > sulcal depth > measures from my dataset (two groups: patient, control). I have the > following questions: > > 1) I want to overlay all three maps simultaneously on an average subject > (created from all subjects' brains), with different color maps. Which > command will do this? > > 2) Register all ?h.thickness datasets to mni152 instead of > mni305/fsaveage, convert the files to .mnc/.obj format, and read in > Matlab. In this step, do I have to convert the native ras coordinates too? > If I want to use bbregister for this step, can you specify the commandline > to do this? > > 3) I want to compute vertexwise expansion/contraction for local surface > area, by > a) calculating total surface area of all faces connected to a vertex, and > then multiplying it with corresponding curv and sulc of that vertex, and > b) comparing the result in 3a) with the warpfield from the registration > form step 2) above. Or is there something I am missing here? > > Also, for 3a) how do I get the correct set of triangles for each vertex? > > Thanks in advance, > Shantanu > > > -- -- Shantanu Ghosh, Ph.D. Harvard Medical School & Massachusetts General Hospital Martinos Center for Biomedical Imaging _______________________________________________ Freesurfer mailing list Freesurfer@nmr.mgh.harvard.edu https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer The information in this e-mail is intended only for the person to whom it is addressed. If you believe this e-mail was sent to you in error and the e-mail contains patient information, please contact the Partners Compliance HelpLine at http://www.partners.org/complianceline . If the e-mail was sent to you in error but does not contain patient information, please contact the sender and properly dispose of the e-mail.
