Alfonso,

That was very helpful. I have a couple other questions.

I set up the conditions as you suggested: pre and post. Pre had values of onset=0, duration=490 for session 1 and was empty for session 2, and vice versa for post.

1) On the preprocessing screen, Conn adds the pre and post conditions to the confound list. Does this make sense or should I remove them as confounds?

2) On the First-level results screen, Conn adds pre and post to the sources. I think they should also be removed from here as well. Is that correct?

Thanks,
Darren