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Dear freesurfer experts, I want to calculate functional connectivity between two seeds with freesurfer-linux-centos6_x86_64_stable_pub-v6 . after using fcseed-config and fseed-sess commands, I use fcseedcor command. the command that I trying to run is as follow: fcseedcor -s subj1 -fsd rest -seed lh-seed2.dat -seed lh-seed3.dat -xreg wm.dat 5 -xreg vcsf.dat 5 -xreg mcprextreg 6 -hpf .001 -lpf .1 -nskip 6 -o seedcor2.dat but the output of fcseedcor is not .dat file ( the connectivity matrix for my result 2*2 matrix) as it has been explained in the fcssedcor help. the output is just the .log file named seedcor2.dat.log. although it has been done without error. I really dont know what is the problem. I would be grateful if you could help me. best regards , sara