The labels are built from areas that showed between-group functional differences. I am able to view the label on the subject in question in freeview.
Maybe I'm looking at the wrong place in the output of mris_info? Or perhaps in the wrong file. I looked at "nvertices" in our "lh.white" file.
On Tue, May 28, 2013 at 1:52 PM, Douglas N Greve greve@nmr.mgh.harvard.eduwrote:
how did you create the label? If it has more vertices than the subject has then something is very wrong. You don't always get segfaults, you might just get garbage and never know it. doug
On 05/28/2013 02:32 PM, Rob Tennyson wrote:
Hi Doug,
It appears that the subject I'm having the PHC issue with has fewer than 163798 vertices - it has 123249 vertices - however, it seems that all of our subjects have fewer vertices and I do not run into an error with any other subjects with this label.
Also, I'm able to load the label onto my data in freeview without any issue. I'm having some problems opening my surfaces with tksurfer on my lab desktop, though. Should I upload the subjects in question so you can take a look?
Thanks! Rob
On Tue, May 28, 2013 at 10:06 AM, Douglas N Greve < greve@nmr.mgh.harvard.edu <mailto:greve@nmr.mgh.harvard.**edugreve@nmr.mgh.harvard.edu>> wrote:
Nothing looks like it is wrong with that label. Can you verify that the white surface has not been changed since the label was created? Check how many vertices the white surface has with mris_info. The PHC label references a vertex index as high as 163798. If the white surface does not have that many veritices, then that could cause the problem. doug On 05/28/2013 10:33 AM, Rob Tennyson wrote: Hi Doug, Attached are the three labels I'm having an issue with (each with a different subject). These are built from areas that we found functional differences between a healthy control group and a MDD group. I was going to take a look at the anatomical stats to see if there are thickness or volume differences as well. I am also going to review the white surface soon as Bruce suggested. On Tue, May 28, 2013 at 9:26 AM, Douglas N Greve <greve@nmr.mgh.harvard.edu <mailto:greve@nmr.mgh.harvard.**edu<greve@nmr.mgh.harvard.edu><mailto:greve@nmr.mgh.harvard.**edu <greve@nmr.mgh.harvard.edu> <mailto:greve@nmr.mgh.harvard.**edu <greve@nmr.mgh.harvard.edu>>>>wrote:
Rob, can you send me your label? doug On 05/27/2013 01:00 PM, Rob Tennyson wrote: > Hi All, > > I'm running "mris_anatomical_stats" with a few manually defined > labels. For a few of my subjects, I am getting the error: > "Segmentation fault" on one of the labels. However, the other manually > defined labels process without any errors on these same subjects. > > For example, I am running "mri_anatomical_stats" on subject 33_bay6 > with a manually defined ERC label, a manually defined PHC label, and a > manually defined medial frontal gyrus label. The only label that runs > an error for this subject is the PHC label. This PHC label runs > without any errors on the rest of my subjects. > > Here is what is displayed when running a label that fails: > > "> mris_anatomical_stats -f PHC.stats.04.txt -l lh.PHC_1.label -b > 33_bay6 lh > limiting computations to label lh.PHC_1.label. > reading volume /Volumes/BigRaid/Rob/subjects/**33_bay6/mri/wm.mgz... > reading input surface > /Volumes/BigRaid/Rob/subjects/**33_bay6/surf/lh.white... > reading input pial surface > /Volumes/BigRaid/Rob/subjects/**33_bay6/surf/lh.pial... > reading input white surface > /Volumes/BigRaid/Rob/subjects/**33_bay6/surf/lh.white... > Segmentation fault" > > Does anyone know what may be causing the Segmentation fault and what > steps I should take to fix it? > > Thank you for your help! > Rob > > > ______________________________**_________________ > Freesurfer mailing list > Freesurfer@nmr.mgh.harvard.edu <mailto:Freesurfer@nmr.mgh.**harvard.edu<Freesurfer@nmr.mgh.harvard.edu><mailto:Freesurfer@nmr.mgh.**harvard.edu<Freesurfer@nmr.mgh.harvard.edu> <mailto:Freesurfer@nmr.mgh.**harvard.edu<Freesurfer@nmr.mgh.harvard.edu>> https://mail.nmr.mgh.harvard.**edu/mailman/listinfo/**freesurfer https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer
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