Thanks, Doug.
I guess it's the mris_preproc file there what I need, not preproc-sess...
Does this version do the areal interpolation as described in Winkler 2012 'Measuring and comparing brain cortical surface area and other areal quantities'?

Best regards, Benjamin

On 05/28/2013 04:16 PM, Benjamín Garzón wrote:

Hi,

I have processed a sample with FS 5.1 and would like to do a group analysis of surface-based area.

According to the release notes ( ** ) there is an issue with the conversion into standard space. I found a former post pointing to a version of preproc-sess that to my understanding should fix that, but the file is not there any more. Is there any quick fix for this problem without having to move to 5.3 / could I get that file?

Thanks,

Benjamin

** There is a bug in the way that FS converts surface-based area (eg, lh.area) and volume (eg, lh.volume) into standard space. The files themselves are fine, it is the way they are transfered to standard space that is the problem. You will not need to re-analyze any of your individual subject data. The volumes of the subcortical structures are unaffected by this problem. Global measures of cortical volume are also unaffected.

-- 
Benjamín Garzón, Ph.D.

Karolinska Institutet
Department of Neuroscience
Retzius Väg 8
17177 Stockholm (SWEDEN)