It appears you are correct. That file has a flat time series upon examination. But the original 4D volume appears to be normal. This dataset was preprocessed in FSL using FEAT (without bandpass filtering) and smoothed. The other subjects appear normal. You've been very helpful I really appreciate it. I have one unrelated question....does conn output an actual connectivity matrix for each subject? I am unable to find where this is stored if it is the case.



Thanks!