Hi Samantha, I just checked your data: your filtered_func_MNI is indeed only one volume. There must be some problem in the way that you are transforming it. Best, Eugene On 21 January 2015 at 15:21, Samantha C. <[log in to unmask]> wrote: > Hi Eugene, > I apologize-- I forgot to include the mask. I usually use: > > [Sam]$ fslmeants -i filtered_func_data_MNI152_2mm.nii.gz -o ROI_meants.txt > -m [ROI mask], > > where I registered the func_data set to an MNI template. I checked the > filtered_func_data_MNI image and it contains the entire timeseries (1200 > timepoints total), but I am still only getting 1 value in the > ROI_meants.txt instead of 1200. I thought the information may be contained > in the filtered_func_data.mat file, but this only includes a 4x4 matrix. > > Thank you! > Sam > >