Hi Dorian
if you want to avoid overlap you might need to cobble together a procedure yourself - probably converting the annots to labels then removing the overlap and recombining into an annot. It wouldn't be that hard to do in matlab.
For you second question you are probably best off drawing the label you want on fsaverage, then mapping it to each of your subjects using mri_label2label
cheers Bruce
On Mon, 23 Jun 2014, Dorian P. wrote:
Thank you Bruce and Douglas, I meant to combine them because I did not want overlaps.
Can I advance one more question as we are here. How can I get an average thickness of the entire lateral temporal lobe (inferior, medial, temporal gyri)? The average of the three gyri may not be useful as one gyrus may be bigger and should be counted accordingly in the average thickness of the entire lateral part.
Thank you.
2014-06-23 13:22 GMT-04:00 Douglas N Greve greve@nmr.mgh.harvard.edu: >>For Destrieux there is only the aparc.a2009s+aseg.mgz. Does this file have also the WM parcellation?
Not by default, bu you can create one easily enough with
cd $SUBJECTS_DIR/subject mri_aparc2aseg --s subject --labelwm --hypo-as-wm --rip-unknown --volmask --o mri/wmparc.a2009s.mgz --a2009s --ctxseg aparc.a2009s+aseg.mgz
doug
On 06/23/2014 01:03 PM, Dorian P. wrote:
Dear Freesurfer followers/developers,
I am doing a study involving temporal lobes and the parcellations from Desikan and Destrieux atlases have very different results. I like the full gyrus parcellation of Desikan but the temporal pole is very small and limited, while in Destriux the temporal pole is bigger and more appropriate to be studied separately. My question is: can I combine parcellations from these atlases? I.e., if I subtract the temporal pole from Destriuex from the map of Desikan, will I take off all the anterior temporal pole gray matter, or is there any potential mismatch between parcellations so there will remain voxels in the anterior temporal lobe?
Thank you.
P.s. One less important question I have is this. I have noticed that wmparc.mgz is the same as aparc+aseg.mgz with the addition of white matter parcels. For Destrieux there is only the aparc.a2009s+aseg.mgz. Does this file have also the WM parcellation?
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