Hi all,

I have manually registered fMRI data that I want to run ICA on, and I want Melodic to use my register.dat file, not re-register the data using its own algorithm. Since there doesn't seem to be any way to use the register.dat file as an input, I've been trying to figure out a way to apply the registration info to the .nii file and then simply uncheck the registration options in Melodic. I used a bit of code I found in the forum archives to try this, which created, using the f.nii and register.dat file, a file called f.anat.nii. But when I tried to use this as the 4D input for Melodic I got the error 'Child process exited abnormally.' I used the following to perform the transformation into f.anat.nii: mri_vol2vol --mov f.nii --reg register.dat --fstarg --o f.anat.nii

Any thoughts on how to create an input that Melodic will accept so that it will use my registration?

Thanks much, Kat