Dear Everyone: I realize that this is a SPM list serve, but I am trying to use SPM 5 and MarsBar tool box (developmental version) in conjunction with a ROI built in MRIcro (1.40) . SO I am hoping that someone out there has used these three tools together and can give me some guidance. WHAT I AM TRYING TO DO: I want to analyze my functional data to see if there is significant activation within an aprior built ROI. WHAT I HAVE DONE THUS FAR SUCCESSFULLY: I built my 3D ROI in MRIcro (based on regions that I am interested in) and exported it in analyze format for SPM 5 to read. I am able to view the ROI in MarsBar and SPM5. From this point forward I am confused. I think that this is a MarsBar procedural question, but I am not certain that it is not related to SPM5 . How do I determine if there is significant activation in my apriori built ROI? Thank you in advance for your suggestions. Theresa Louise-Bender Pape, Dr.PH, MA, CCC-SLP/L Advanced Research Career Development Scientist Department of Veterans Affairs Rehabilitation Research & Development Service Edward Hines Jr. VAH Voice Mail: (708) 202-4953 Confidentiel Fax: (708) 202-7487 Email: [log in to unmask] Pager : (312) 707-3345 Research Assistant Professor Northwestern University Feinberg School of Medicine, Department of Physical Medicine and Rehabilitation Clinical Research Scientist Marianjoy Rehabilitation Hospital Senior Associate Northwestern University Feinberg School of Medicine, Institute for Health Services Research and Policy Studies