definitely use the individuals. Use mri_vol2surf to convert the motion corrected (and otherwise unsmoothed) fmri time courses to the surface. Then use mri_segstats with the --avgwf and --annot options to compute the mean time course over the parcellations.
doug On Sat, 17 Jul 2010, liang wang wrote: > Hi, > > Does anyone know one of studies which uses the parcellations (aparc or > aparc.a2009s) Freesurfer provides to extract fMRI time course from each > subject's fMRI data. Reading the instructions in Freesurfer Wiki, I know how > to do that. However, I am not sure whether I should use the parcellations > from the average output (obtained from make_average_subject), or the > parcellations based on each subject. I would next compute functional > connectivity between these regions. I am appreciated for any suggestions. > > Liang > > -- Douglas N. Greve, Ph.D. MGH-NMR Center gr...@nmr.mgh.harvard.edu Phone Number: 617-724-2358 Fax: 617-726-7422 Bugs: surfer.nmr.mgh.harvard.edu/fswiki/BugReporting FileDrop: www.nmr.mgh.harvard.edu/facility/filedrop/index.html _______________________________________________ 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.
