Hi Doug, I'd like the average over the ribbon, so I changed "pial" to "white". I'd think this actually results in a projection of the white surface, but I guess this actually doesn't matter since each white vertex is associated to a directly overlying pial vertex?
Best regards, René On Tue, May 14, 2013 at 5:48 PM, Douglas N Greve <gr...@nmr.mgh.harvard.edu>wrote: > Hi Rene, do you want it on the pial surface or the average over the > ribbon? If the pial surface, then use your cmd below but use --projfrac > 0. If you want the average use your cmd below but change pial to white > (or don't spec --surf) > doug > > > On 05/14/2013 08:00 AM, René Besseling wrote: > > Hi Freesurfers, > > For this analysis I plan to do, I want to map resting-state data in > > native (T1) space to the pial surface. The command I use for this is: > > mri_vol2surf --src fMRI_nat.nii --regheader subjID --hemi lh > > --projfrac-avg 0 1 0.05 --surf pial --o fMRI_2surf.mgh > > So the intention is to average the resting state data over the cortex > > and to map this to the pial surface. However, if I'm not mistaken the > > --projfrac-avg option projects along the outward pointing surface > > normal. Therefore, when using the pial surface, I expected that the > > proper call would be --projfrac-avg 0 -1 -0.05. However, this command > > does not run, whereas the command given above does, and yields > > (sensible) output. So is the command given above correct after all? > > And does this imply that for the pial surface, the volumetric data is > > actually projected along the inward pointing normals? > > Best regards, > > > > René > > > > > > _______________________________________________ > > Freesurfer mailing list > > Freesurfer@nmr.mgh.harvard.edu > > https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer > > -- > 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: https://gate.nmr.mgh.harvard.edu/filedrop2 > www.nmr.mgh.harvard.edu/facility/filedrop/index.html > Outgoing: ftp://surfer.nmr.mgh.harvard.edu/transfer/outgoing/flat/greve/ > > _______________________________________________ > 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. > >
_______________________________________________ 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.
