Hi everyone,
I had two questions:
1) I was wondering if it's ok to run a glm to compare cortical surface areas between two groups on a vertex-wide basis (just like a thickness analysis). Or is it better to extract the area of a label (as is the output of mri_anatomical_stats)?
2) The mri_anatomical_stats output includes 4 measures of curvature: MeanCurv, GausCurv, Van Essen Folding index and Curvature Index. There was some discussion as to which of these was most appropriate for comparing sulcal folding (that is, essentially what they measure, correct?)- was there ever any final consensus?
Thank you.
Regards,
Massieh Moayedi B.Sc. (Hons) PhD Student Dr. Karen Davis' Lab Institute of Medical Science University of Toronto
Brain, Imaging and Behaviour- Systems Neuroscience MP 14-301 Toronto Western Research Institute University Health Network 399 Bathurst Street Toronto, Ontario Canada M5T 2S8 Tel: 416-603-5882
massih.moayedi@utoronto.ca mmoayedi@uhnres.utoronto.ca http://individual.utoronto.ca/PSMJC