External Email - Use Caution Hi Bruce,
Thank you very much for your answer. Kind regards, Rosie On Sun, Nov 21, 2021 at 8:04 PM Fischl, Bruce <bfis...@mgh.harvard.edu> wrote: > Hi Rosie > > > > It really depends on what your hypotheses are, but if you are covarying > for age and gender in thickness you probably want to do so in an analysis > of volume as well. The only real difference are (1) thickness doesn’t > really need TBV covariation, and (2) thickness is a more localizable > quantity than volume. Of course they are different neurobiologically as > well, but from an analysis standpoint those are the two big differences > > Bruce > > > > *From:* freesurfer-boun...@nmr.mgh.harvard.edu < > freesurfer-boun...@nmr.mgh.harvard.edu> *On Behalf Of *Rosalia Dacosta > Aguayo > *Sent:* Sunday, November 21, 2021 1:42 PM > *To:* Freesurfer support list <freesurfer@nmr.mgh.harvard.edu> > *Subject:* [Freesurfer] Basic question > > > > * External Email - Use Caution * > > Dear Freesurfer team, > > > > I know this is a basic question, but I would like to be sure before > proceeding. Are those statements below right? > > > > For cortical thickness, I should covariate for age and sex > > > > For volume, I should covariate only for TBV > > > > Thank you for your time and your patience. > > > > Best wishes, > > Rosie > > > _______________________________________________ > Freesurfer mailing list > Freesurfer@nmr.mgh.harvard.edu > https://secure-web.cisco.com/1UoHl-aIm8K2Jins6WNMukvp1N7s1N3PEqPPEyEozsWoy5oalgWmyXpVD5I9dQTPLsDthfZZAPDtQNxmq32SsGCTBsdw9kn0t7kayQQqnElompIbgnYgbRf-heUwwkKF0R8Ja5ExM2JGkYtt9odXFFhWZrcOxb76IeW3gD_ObpmfGrd8nxAia5Hni06CVPlGCxuuTzhMAOn3f_g59Q-BHTFYzqxDAM8P0Htpt8l1DFWY2JB7uEWbSdpGkzHiY9wGjW0XMVk4wfH4EZZDkShah34VA5K26aySqv9kJfKAo32Tpr_alli6U8HGmrKAuujFK/https%3A%2F%2Fmail.nmr.mgh.harvard.edu%2Fmailman%2Flistinfo%2Ffreesurfer > 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 Mass General > Brigham Compliance HelpLine at > http://secure-web.cisco.com/13b1Kw0iqhzWIA2zmmelxSnrAB9TwOqzKaamm_tPr9lx1lJCa3M1DbVJ35AM7hX_ZPHGqyIlFAwRzr3xar2R7wrvTnHnRNTaUjNdniHZ0M32g5aYcAxAwKyruan-YSOr51bO_b1FjBkigWoUeH3nB3KrA5Iiqf7ccYE8zpgXoO3Z0V5_WAPy73WeYDvK_vRQCxZt7WObcCqxab4HyiV74nRGw4fCM2-tlLsN1tsl28mBQvDWCSPLFU8EVowOsFC5dw71v2U3vVvmLI1Fm4y0z4M0MemzQxvpZVyjofPqaY82_X_E1wBrj_VQRwU1mo0gJ/http%3A%2F%2Fwww.massgeneralbrigham.org%2Fcomplianceline > . 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. > Please note that this e-mail is not secure (encrypted). If you do not > wish to continue communication over unencrypted e-mail, please notify the > sender of this message immediately. Continuing to send or respond to > e-mail after receiving this message means you understand and accept this > risk and wish to continue to communicate over unencrypted e-mail. >
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