Hi all,
I created a custom template using a few subjects and have two tif. files for lh and rh. I am trying to create a cortical/surface atlas from scratch. My understanding is that I must use mris_ca_train.
mris_ca_train [options] <hemi> <canonsurf> <annotfile> <subject1> [subject2 ...] <outputfile>
the canonsurf is mentioned to be lh,sphere,reg. I assume this is the file that was created using mris_register during the template creation process.
I am not sure what the annotfile -> name of per subject annotation file to input from every subject means. Say, I create a label on each subject delineating primary auditory cortex, and a different label delineating primary visual cortex for each individual.
First, on what surface do I draw the labels on? lh,sphere.reg? lh.pial?
Secondly, after having drawn the surface labels do I make them into annotation files and save them under the same name for each subject and then input then in mris_ca_train?
I couldnt find information on this in the mail archive..
Thank you for your help!
Daiana R.P