try multiple regressors and select the rp..txt file. darren -----Original Message----- From: SPM (Statistical Parametric Mapping) [mailto:[log in to unmask]] On Behalf Of Pape, Theresa Sent: Thursday, January 04, 2007 11:05 AM To: [log in to unmask] Subject: [SPM] Dear Experts Well I am still learning SPM5 and I appreciate your past suggestions. I have one (hopefully only one) more. I am trying to enter motion as a regressor. Since the rp. text filecontains 6 columns/6 covariates, does this mean in SPM5 that I have multiple regressors? OR Should I choose a single regressor, name it motion and then when it asks for value enter 6 and then under multiple regressor option select the rp.txt file? I appreciate any suggestions. Regards and happy new Year Theresa Pape