Dear all, I am a beginner for Caret Software and am quite exciting about this amazing tool. I have some questions and would like to seek for advises.
My attempt of using Caret is to overlay fMRI activation maps (Map Volumes to Surfaces) and make comparison across species. I processed my fMRI data using FEAT analysis in FSL. However, my situation is a little bit complicated. Because instead of comparing macaque with human, I'm comparing baboon with human. In this case, we don't have an atlas for baboons, but I do have a group-averaged baboon brain template generated in-house. Two major questions that I have are (1) How can I map the activations (z-stats) onto to the baboon brain template that I have, since there is no baboon atlas in Caret that I can use? I just learn from the e-mail lists that I could generate the surface map (of the template) using Freesurfer, and use Caret to overlay activations onto it. Is it the correct way of doing it? If I want to make comparisons between human and baboon (with the same stimulation), any suggestions on how to do this properly? I feel like to generate a baboon brain atlas might be the best way, although it seems to be very difficult. Are there instructions on how to make the atlas myself using the template I have? Or, following the methods as described in the "Contours and Selections" manual is the most appropriate way? (2) The area expansion map between macaque and human inside the tutorial looks interesting. Any suggestions/hints/instructions on how to generate those? Any comments are appreciated. Thank you all for you time! Best, Hsiao-Ying (Monica) ------ Hsiao-Ying (Monica) Wey, B.Sc. PhD Candidate Research Imaging Institute Department of Radiology UT Health Science Center at San Antonio Email: [email protected]<mailto:[email protected]> Phone: (210) 567-8163 [7-8163] "Hard work keeps the wrinkles out of the mind and spirit." ~Helena Rubinstein
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