20 Mar
2008
20 Mar
'08
8:25 p.m.
Hello-
When I look at the CWP results of mri_surfcluster in the sig.cluster.sum versus the resultant sig.cluster.mgh, the results are different. Specifically, all clusters negatively correlated with my independent variable display a value in tksurfer of -1+CWP, and clusters that are positively correlated display a value of 1-CWP.
Which values should I believe as my actual p-values, the .sum's CWP or the .mgh's added/subtracted values?
Thanks for your help,
--------- Jim Porter Graduate Student Clinical Science & Psychopathology Research University of Minnesota