thanks, this covers my problem partly,
the important detail I had omitted was that I'd like to estimate the efficiency thousands of times, without necessarily creating a design.fsf file each time.
I was rather thinking of submitting design matrix and contrasts directly to a program that than gives me back required percent signal change for each contrast.
Is there a way to do this, or is the efficiency calculation coded in the feat_model program and cannot be accessed independently?
Thanks again!
Guido
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