Dear SPM user's,
I was wondering if there is an easy way to create (nuisance) regressors from WM and CSF signals.
I'm actually looking for a matlab/spm script that can extract CSF and WM signal from the output mask of the segmentation step and then average the timecourse across all voxels in the mask. The final purpose is to enter the regressor files into a 1st level analysis along with e.g. movement regressors.
Many thanks in adavance for any help.
Carole
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