On 8/16/13 11:01 AM, Subhabrata Chaudhury wrote:
Hi All,
 
When we say FWHM 10, does that mean a circle with a radius of 10 mm ?
Yes. It is actually a 2D isotropic gaussian, so isoclines are a circle.
Also I have some significant clusters from my analysis, will the area of the cluster be in mm2 ?
Yes.

How is the area of a significant cluster calculated ?
Summing up the area of the triangles of the vertices in the  cluster.
doug

I mean the math behind it. Is it mapping the cluster to the 1mm3 volume and counting the number of voxels ? (I know I can make a label of the cluster and run the anatomical-stats command to get the value ? 
 
Thank you
 
Subha


_______________________________________________
Freesurfer mailing list
Freesurfer@nmr.mgh.harvard.edu
https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer