Hello,

On line 367 there is SPM.xCon(xY.Ic). 

I recently re-ran the first level analysis for this participant when I changed the mask threshold default in SPM from .8 to .5.

I did not create any new contrast for this first level analysis, just created a new SPM.mat file.

When I created a meaningless con image (inputted just a 1 in contrast manager) the script ran fine.

Does gPPI need some first level con image to run, regardless of what it is?

Ive attached the SPM.mat file.