Hi,

i am using version 4.0.5. for two brains out of a larger study, localGI exits with errors, the error message is similar in both brains and looks like:

lGI for vertex number 49901 of the outer mesh is 1.9168
lGI for vertex number 50001 of the outer mesh is 2.4523
ratio saved at 50001
lGI for vertex number 50101 of the outer mesh is 3.2668
... remeasuring lGI value for vertex iV = 50201. It may take a few minutes.
WARNING -- Problem for vertex iV = 50201, lGI value is aberrantly high (lGI=43.3799)...
...lGI computation will be stopped. This may be caused by topological defects, check mris_euler_number on the pial surface.

mris_euler_number ?h.pial gives 0 defects. i ran localGI on both brains several times and got the same error message at the same vertex number (for lh). empirically, surfaces look reasonable.

a similar message was posted some time ago:

http://www.mail-archive.com/freesurfer@nmr.mgh.harvard.edu/msg07281.html

but no reply.

any ideas?

thanks,
-joost