Dear Doug,
I used selxavg3-sess in freesurfer 5.0 to run a big GLM analysis on a monkey data set containing 147 runs. But When I check the results, I found that in the voxels where the t-values should be very high were turned out to have a value of zero. I checked the brainmask, the ces and the cesvar values, they all look fine. It seems that only the ces values in these voxels are a bit high compared to the nearby normal voxels (e.g. 1.17 (ces)/0.00048(cesvar) compared to 0.74/0.00040 in a nearby normal voxel). And it seems that not only me have this problem (similar problem posted in the mailinglist before. http://www.mail-archive.com/freesurfer@nmr.mgh.harvard.edu/msg13789.html). Do you know what the problem would be and how to solve it? Thanks very much for your help.
Attached please find an image of the problem.
Best,
Qi Zhu, PostDoc Laboratorium voor Neuro- en Psychofysiologie K.U.Leuven Medical School Herestraat 49, B-3000 Leuven (Belgium)
