Ray Fix wrote:
Hello List,
Question 1: Where does the sample average7 come from? I searched through the manuals, googled, searched around a little but was unable to find any info. For example, is this the averaged brains of 7 male subjects in there 40s?
It's a 7th order icosahedron (163842 vertices). I think the orig coordinates are supposed to be talariach coordinates averaged over some subjects (but it does not overlay very well on the talairach brain). Bruce can give you more details.
Question 2: My plan is to create my own ICBM labels using average7 and then apply them via mri_label2label to two groups of subjects (which happen to be pediatric data). Does this stand any chance of working? I would be very interested if their are any other approaches you recommend.
It all depends on how you're going to map the labels. What coordinate system are the ICBM labels in?
doug
Thanks for your guidance,
Ray Fix