Dear FreeSurfer experts, 

I have a question regarding the tessellation step, in which the surface is covered by a mesh of triangles. 

1. How would the number/sizes of triangles be affected/ alter as a result of different brain volumes/sizes of different subjects? i.e. would a subject with a bigger brain volume have greater number of triangles compared to a subject with a smaller brain volume? Or will the subject have the same number of triangles, but larger triangles instead?

2. I am aware that the triangles are not uniform like the voxels in a VBM... within a particular subject, how are the sizes of triangles determined in different parts of the brain? What determines which parts of the brain will have smaller/larger triangles compared to other parts of the brain?

Would really appreciate your input,

Thanks,

Avi

CONFIDENTIALITY NOTICE: This e-mail message, including any attachments, is for the sole use of the intended recipient(s) and may contain confidential and privileged information. Any unauthorized review, use, disclosure or distribution is prohibited. If you are not the intended recipient, please contact the sender by reply e-mail and destroy all copies of the original message.

AVIS DE CONFIDENTIALITÉ : Ce message électronique, ainsi que tout fichier qui y est joint, est reserve à l'usage exclusif du destinataire visé et peut contenir des renseignements confidentiels et privilégiés. Toute lecture, utilisation, divulgation ou distribution non autorisée est interdite. Si vous n'êtes pas le destinataire visé, veuillez en aviser l'expéditeur par retour de courriel et détruire toutes les copies du message original.