Re: [Freesurfer] declaring spherical ROIs centered at common Talairach coord.

2009-07-23 Thread Douglas N Greve
might be better to draw it on fsaverage and then propagate it to the other subjects, but both would work. Bruce Fischl wrote: > Hi Stephan, > > I guess you could draw the ROI in one subject at the appropriate tal > coords, use mri_label2label to map it across subject using the tal xform, > then

Re: [Freesurfer] declaring spherical ROIs centered at common Talairach coord.

2009-07-23 Thread Bruce Fischl
Hi Stephan, I guess you could draw the ROI in one subject at the appropriate tal coords, use mri_label2label to map it across subject using the tal xform, then sample it onto the surfaces of each subject. cheers Bruce On Thu, 23 Jul 2009, Stephen Towler wrote: > (Looks as if the text of my o

Re: [Freesurfer] declaring spherical ROIs centered at common Talairach coord.

2009-07-23 Thread Stephen Towler
(Looks as if the text of my original email didn't make it to the post. Here it is again:) We want to extract a spherical ROI of cortical thickness values centered at the same Talairach coordinate for each brain in a study. Any suggestions? In the 2007 archives there is an instructive thread abou

[Freesurfer] declaring spherical ROIs centered at common Talairach coord.

2009-07-22 Thread Stephen Towler
We want to extract a spherical ROI of cortical thickness values centered at the same Talairach coordinate for each brain in a study. Any suggestions? In the 2007 archives there is an instructive thread about declaring spherical ROIs on a volume, but I'm not clear about how we would place t