Hi again,

I put those '*' according to the documentation of the 3dDeconvolve for the input of the stimulus timing (https://afni.nimh.nih.gov/pub/dist/doc/misc/Decon/DeconSummer2004.html). There, it is said that if you are using the multi-row format (for multiple runs), if there is only one stimulus time in the run (which often happens in my experimental design), you should put those '*' to not confuse AFNI with the single-column format. Maybe I misunderstood the instructions, but I tried erasing those extra '*', and the error is still there. Again, the error seems to happen only in those stim_time files that start with an empty run (the files where is a '*' in the first line). The ones that start with a stim time in the first run, beginning with a number in the first line, run smoothly. Any ideas of what is going on?

Alberto