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Thanks! On Sun, Mar 18, 2018 at 11:20 PM, Anderson M. Winkler < [log in to unmask]> wrote: > Hi Moran, > > Assuming you are testing a simple contrast that tests if a regression > coefficient is different than zero (as opposed to differences between > regression coefficients), do the following: > > 1) Use fslmaths to compute the average signal of filtered_func_data, > 2) Divide the COPE image by that average > 3) Multiply the result by the PPHeight at the top of the design.mat for > that EV being tested, and multiply by 100. > > That should give the %BOLD change. For more complicated designs need to > consider the effective regressor. Jeanette Mumford has a guide on this, > please see here: http://mumford.bol.ucla.edu/perchange_guide.pdf > > All the best, > > Anderson > > > On 14 March 2018 at 11:12, Moran Artzi <[log in to unmask]> wrote: > >> Hi all, >> Given .feat folder, how can I calculate whole brain percent signal change >> map? >> It seems that .feat contains only the Zmap, and the Featquery FSL tool >> enables to calculate percent signal changes only for given VOIs >> Thanks >> Moran >> > > -- Artzi Moran, PhD Sagol Brain Institute, Tel Aviv Sourasky Medical Center Sackler Faculty of Medicine, Tel Aviv University Tel Aviv, Israel