Thanks for getting back, Bruce. Regards, Don Don Krieger, Ph.D. Department of Neurological Surgery University of Pittsburgh (412)648-9654 Office (412)521-4431 Cell/Text
> -----Original Message----- > From: freesurfer-boun...@nmr.mgh.harvard.edu [mailto:freesurfer- > boun...@nmr.mgh.harvard.edu] On Behalf Of Bruce Fischl > Sent: Thursday, September 11, 2014 8:26 AM > To: Freesurfer support list > Subject: Re: [Freesurfer] lh.BA.annot vs lh.BA.thresh.annot ... generalization > question > > Hi Don > > no, it doesn't make sense for the aparc since it is a complete tiling of the > surface. Each point is assigned the most likely label with no holes, so no > thresholding is needed. > > cheers > Bruce > On Thu, 11 Sep 2014, Krieger, Donald N. wrote: > > > > > Hi Anastasia or anyone, > > > > > > > > Are there any other groups of labels which are, by default, produced > > in comparable less vs more restrictive ways? > > > > For instance, is there a way to produce lh.aparc.thresh.annot with > > comparably constrained labels? > > > > And does it make sense to do so? > > > > > > > > Regards, > > > > > > > > Don > > > > > > > > <snip> > > > > > > > > > > > > > > > On 14-09-08 12:39 PM, Anastasia Yendiki wrote: > > > > > > Hi David - On the difference between .thresh and "not .thresh" labels: > > > > > > The BA labels come from averaging histologically derived labels > > > > from > > > > > > a set of post mortem brains. The non-thresholded version is just > > > > the > > > > > > sum of the corresponding labels from the different brains in > > > > > > fsaverage space. So vertices are included even if only one of the > > > > > > brains had their BA in that vertex, which means that these labels > > > > > > are going to be rather large. In the thresholded version, a > > > > > > threshold has been applied to the average BA label, to make it > > > > have > > > > > > an area as close as possible to the average area of the individual > > > > BA > > labels. I hope this makes sense. > > > > > > > > > > > > a.y > > > > <snip> > > > > > > > > > > _______________________________________________ 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.
