[Freesurfer] Define ROI in individual surface based on area around a Talairach coordinate?

Hi all,

Is there perhaps a tksurfer tutorial for how to define and/or draw an ROI on an individual's surface by dilating out from a given Talairach coordinate? Freesurfer's volume registration is excellent and we'd like to use the correspondence to those normalized Talairach coordinates. Any insights or suggestions would be greatly appreciated!

Thank you so much, hope you are having a good week!

Best,

Elise ***************************************************** Annelise Dickinson Post-Bac IRTA Laboratory of Brain and Cognition, NIMH/NIH/DHHS Building 10, Room 4C212 10 CENTER DR MSC 1366 BETHESDA MD 20892-1366 ***************************************************** Phone: (301) 435-4941 FAX: (301) 402-0921 E-Mail : dickinsona@mail.nih.gov