Hello Rick,

The timing files are now correct and we are still getting the collinearity error.

For stim_times 34 & 35 of our model, it's common to have runs without an onset. Especially stim_times 35. Empty runs are denoted as a * in the timing files. Is it possible this is causing the issue?

-stim_times 34 /usr/local/mridata/Smith_Merit/Processed_Data/nifti/${subject}/ses-sen/func/time_files/remember_foils.1D 'TENT(0,16,21)' -stim_label 34 remembered_foils \
-stim_times 35 /usr/local/mridata/Smith_Merit/Processed_Data/nifti/${subject}/ses-sen/func/time_files/forgotten_foils.1D 'TENT(0,16,21)' -stim_label 35 forgotten_foils \

Thank you,
Catherine