Hi -- I have a question regarding co-registration for stroke patients:
We employed three pre- and three post-treatment scanning sessions in
several persons with large unilateral brain lesions. The plan is to run
a higher level analysis for each subject to get mean activation across
the three pre- and three post-treatment scans. My quesion is this:
should we co-register the three functional runs using FLIRT before we
run the actual first level analyses? We would like to mask out the
lesion in each case for volume weighting. We are not interested in
colapsing across the subjects, only across the three pre- and three
post-treatment scanning sessions within each participant. Thanks very
much in advance -- Julius
Julius Fridriksson Ph.D.
Assistant Professor
Communication Sciences & Disorders
University of South Carolina
Tel: (803) 777-5931
Fax: (803) 777-3081
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