Hi, You might also want to try featquery, and you will find helpful information here: http://wiki.poldracklab.org/index.php/FSL-ROI http://mumford.bol.ucla.edu/perchange_guide.pdf good luck, wolf Heather Collins wrote: > Hello experts! > > I have an event-related study and I would like to extract time series information > for each subject for several regions of interest. What is the best way to do this > with FSL? > > Thanks! > > --Heather >