Hello,
I am trying to perform a physio-physiological interaction (PPI) analysis on resting state data and have encountered an error I can't seem to fix.
After preprocessing and specifying a simplistic GLM, I created two VOIs (the PCC and medial PFC). I selected both VOIs for the PPI analysis and when running it I get the following error:
Failed 'Physio/Psycho-Physiologic Interaction'
Reference to non-existent field 't'.
Error using ==> spm_hrf at 26
Error using ==> spm_peb_ppi at 307
Error using ==> wpm_cfg_ppi.m at line 138
run_ppi
There was a similar error posted, but i'm not sure anyone replied ... https://www.jiscmail.ac.uk/cgi-bin/webadmin?A2=spm;1dbc6ef2.1210
Your help is much appreciated!
Jenna
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