Hi Hayley
the LINE SEARCH messages can be ignored, but not the watershed one. The watershed error means the skull stripping has failed, possibly because of a talairach normalization problem. Have you checked the talairach.xfm and the brain.mgz? That's where I would start
cheers Bruce
On Thu, 14 Mar 2013, Hayley Dorfman wrote:
Hello,
I'm having trouble with recon-all. For 1 of 49 subjects, it completes with the following error:
mri_watershed Error: GLOBAL region of the brain empty !
Other errors are found in the log which read:
IFLAG= -1 LINE SEARCH FAILED. SEE DOCUMENTATION OF ROUTINE MCSRCH ERROR RETURN OF LINE SEARCH: INFO= 6 POSSIBLE CAUSES: FUNCTION OR GRADIENT ARE INCORRECT OR INCORRECT TOLERANCES
This subject's surf files are also empty.
I found this thread from two years ago mentioning a similar issue, but a solution was not available: http://www.mail-archive.com/freesurfer@nmr.mgh.harvard.edu/msg18863.html
Has there been any progress? I've attached my log file.
Any help is much appreciated!
-Hayley