Dear FSL users, I am running proabilistic tractography (using a mask identified from TBSS) on a group of patients and age matched controls. Is it statisitcally sound to do an unpaired t-test between the 2 groups on the tracts maps obtained ? thanks Paul Paul Geha M.D. Northwestern University The Feinberg School of Medicine Department of Physiology M211 303 E. Chicago Ave. Chicago, IL 60611 Tel:312-503 2886 Fax: 312-503-5101