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Dear FSL list,

I have been doing two groups comparisons and a question came up which I
wasn¹t sure how to answer correctly. Usually in the group level I use a [1
­1] [-1 1] contrast which gives me the directionality of the differences
between groups. My questions is that I am particularly interested in the
differences in the Œdeactivations¹ or in other words not the [1 0] contrast
of the first level but rather the [-1 0] contrast. I was wondering if the
directionality is based exclusively on the activation pattern I propose it
to handle? Thank you very much.


-- 
Andres