Re: [Freesurfer] Whole brain parcellation contd..

2011-06-16 Thread Sudhin A. Shah
Thank you. I just found this: http://brainybehavior.com/neuroimaging/2010/05/converting-cortical-labels-from-freesurfer-to-volumetric-masks/ 1) Is it better to extract the masks from the .mgz file (as explained on this site) as opposed to converting the aparc+aseg-inhighres.mgz file to .nii.gz

Re: [Freesurfer] Whole brain parcellation contd..

2011-06-15 Thread Douglas N Greve
You are guaranteed not to have overlap regardless of what you do as there is only one label at each voxel. For Cortex, what you have is fine. For subcortical, you can use what is in $FREESURFER_HOME/ASegStatsLUT.txt. This has {Left,Right}-Cerebral-Cortex which can be ignored. doug Sudhin A.

Re: [Freesurfer] Whole brain parcellation contd..

2011-06-15 Thread Sudhin A. Shah
Hi, Is there anyway to know all the label #s that are in aparc+aseg-inhighres.mgz. Thank you, S On 06/13/11, "Sudhin A. Shah" wrote: > > > Hi Sorry for bothering you again, but I am not sure I understand. > > I was running whole brain correlation analysis (voxel by voxel). BUT for > comp

Re: [Freesurfer] Whole brain parcellation.

2011-06-13 Thread Sudhin A. Shah
Hi Sorry for bothering you again, but I am not sure I understand. I was running whole brain correlation analysis (voxel by voxel). BUT for comparison purposes, I want to compute region by region correlation matrix. So, I want to divide up the brain into freesurfer parcellated regions - i.e. with

Re: [Freesurfer] Whole brain parcellation.

2011-06-13 Thread Douglas N Greve
Anything that is non-0 will cover the whole brain. doug Sudhin A. Shah wrote: > Hi, thank you. Is there a range in the labels that will ensure that I am > including the whole brain? I.e. I see labels for Cx, but not subcortical.. > If I take labels 1001 to 2001 ( for eg ) will that cover whole br

Re: [Freesurfer] Whole brain parcellation.

2011-06-10 Thread Douglas N Greve
What do you mean you are doing it with FEAT? Sudhin A. Shah wrote: > Hello, > > I am a beginner so please bear with me. I want to obtain binary masks > for every region (Cortical + subcortical). I am using FSL(feat) to do > this BUT am not sure what the labels would be. > > I have looked at Free

[Freesurfer] Whole brain parcellation.

2011-06-10 Thread Sudhin A. Shah
Hello, I am a beginner so please bear with me. I want to obtain binary masks for every region (Cortical + subcortical). I am using FSL(feat) to do this BUT am not sure what the labels would be. I have looked at FreeSurferColorLUT.txt for aparc+aseg-in-highres.mgz BUT do not know which labels t