Hi Alex,

that will allow the surface to deform properly. Essentially, the surface deformation is inhibited anywhere the aseg indicates that the surfaces are adjacent to non-cortical structures.

cheers, Bruce On Mon, 17 Sep 2007, Alex Fornito wrote:

Here are some examples with the aseg. The problem region looks like cortex to me. Would I better off re-labelling the subcortical regions near the area as white matter if all I'm interested in is cortical thickness?

On 14/09/2007, at 10:51 PM, Bruce Fischl wrote:

...

Hi Alex,

is that cortex is it accumbens? What do the asegs look like?

Bruce On Fri, 14 Sep 2007, Alex Fornito wrote:

...

Hi all, I've been having problems getting accurate surfaces in the subgenual cingulate region, as illustrated in the attached pics. I previously posted to the list about this, and you sent me a newer mris_surf for an older version of freesurfer that fixed the problem in some, but not all cases. It seems like the new version (included with 4.0) is still giving me some grief. Any suggestions re: what I can do?

Thanks for your help, Alex

(I'm re-posting this query as per Bruce's request last week.)

Alex Fornito JN Peters Research Fellow Melbourne Neuropsychiatry Centre Department of Psychiatry The University of Melbourne

Melbourne Neuropsychiatry Centre National Neuroscience Facility Levels 2 & 3, 161 Barry St Carlton South Vic 3053 Australia

Phone: +61 3 8344 1861 Fax: +61 3 9348 0469 Email: fornitoa@unimelb.edu.au

www.psychiatry.unimelb.edu.au/mnc

Alex Fornito JN Peters Research Fellow Melbourne Neuropsychiatry Centre Department of Psychiatry The University of Melbourne

Melbourne Neuropsychiatry Centre National Neuroscience Facility Levels 2 & 3, 161 Barry St Carlton South Vic 3053 Australia

Phone: +61 3 8344 1861 Fax: +61 3 9348 0469 Email: fornitoa@unimelb.edu.au

www.psychiatry.unimelb.edu.au/mnc