Hi,
I have two groups (treatment, placebo) and I want to compare these group's resting state (per session). 
I found two options and was wondering whats the best way:

In setup 1st level analysis:
create a contrast with treatment as 1 and ctrl as 0 (per subject). 
create a contrast with treatment as 1 and ctrl as -1 (per subject).


In second level results:
select allSubjects and only treatment (contrasted 1 and 0) and then choose simple effects.
OR
select the subject to subject contrast that was done in the 1st level analysis (1 and -1)


Whats the best practice?

Thank you for the help and the toolbox itself.

Or D.