If you're studying thickness, I'm a fan of using mean cortical thickness as the covariate (since thickness is what you're studying). I've posted on this in the past.
cheers, -MH -- Michael Harms, Ph.D. ----------------------------------------------------------- Conte Center for the Neuroscience of Mental Disorders Washington University School of Medicine Department of Psychiatry, Box 8134 660 South Euclid Ave. Tel: 314-747-6173 St. Louis, MO 63110 Email: mha...@wustl.edu From: <std...@virgilio.it> Reply-To: <std...@virgilio.it> Date: Thursday, April 4, 2013 7:21 AM To: <freesurfer@nmr.mgh.harvard.edu> Subject: [Freesurfer] cortical thickness normalization Hi list, I'm reading a lot of post on this list about cortical thickness normalization. I' m noting very different results on my data when I use mean thickness or ICV as nuisance factor than no factor. I'm confuse on this topic, could you advise the best way, please? Thanks, Stefano _______________________________________________ Freesurfer mailing list Freesurfer@nmr.mgh.harvard.edu https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer The information in this e-mail is intended only for the person to whom it is addressed. If you believe this e-mail was sent to you in error and the e-mail contains patient information, please contact the Partners Compliance HelpLine at http://www.partners.org/complianceline . If the e-mail was sent to you in error but does not contain patient information, please contact the sender and properly dispose of the e-mail.
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