Just to add, i found no voxels active for the group means of temporal and dispersion derivatives. However when i opened the fstat group mean in fslview and viewed the filtered_func_data timeseries of a few significant clusters, it seems that the canonical COPE values are lower than that of the temporal and dispersion derivatives. Shouldnt the canonical COPE values be higher than that of the temporal and dispersion? Please advise.
-Vish
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