Dear All, I am sorry to post this message again. Since i am not able to find from the tutorial and archives what i need i am posting it. I want to compare cortical thickness values in each region from aparc.stats file between control and patients. I am wondering whether it is possible to compare all the regions given in aparc.stats file and give a map showing which of these regions are significantly between the two groups (like VBM the final p map will give you regions which are significantly different).
Do i need to create a separate contrast matrix for each and every regions (for eg one contrast for lh.cuneus,one for lh.temporalpole etc) or like in VBM studies you give a single contrast matrix and design matrix since you are testing the same hypothesis in different regions of the cortex. I also would like to know whether i have to do multiple comparisions when i am testing for same hypothesis in different regions or not needed. In the tutorials i find mostly regression between thickness and demographic parameters so any suggestion or guidance to where i can find tutorial or materials related to my above questions. Thanks venkat =================================== P Please consider the environment before printing this e-mail Cleveland Clinic is ranked one of the top hospitals in America by U.S.News & World Report (2009). Visit us online at http://www.clevelandclinic.org for a complete listing of our services, staff and locations. Confidentiality Note: This message is intended for use only by the individual or entity to which it is addressed and may contain information that is privileged, confidential, and exempt from disclosure under applicable law. If the reader of this message is not the intended recipient or the employee or agent responsible for delivering the message to the intended recipient, you are hereby notified that any dissemination, distribution or copying of this communication is strictly prohibited. If you have received this communication in error, please contact the sender immediately and destroy the material in its entirety, whether electronic or hard copy. Thank you.
_______________________________________________ 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.
