AFNI Message Board

Dear AFNI users-

We are very pleased to announce that the new AFNI Message Board framework is up! Please join us at:

https://discuss.afni.nimh.nih.gov

Existing user accounts have been migrated, so returning users can login by requesting a password reset. New users can create accounts, as well, through a standard account creation process. Please note that these setup emails might initially go to spam folders (esp. for NIH users!), so please check those locations in the beginning.

The current Message Board discussion threads have been migrated to the new framework. The current Message Board will remain visible, but read-only, for a little while.

Sincerely, AFNI HQ

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LuisaBoh
September 28, 2020 11:53AM
Hello AFNI

I ran 3dttest++ to compare the CBF values of 2 groups. I used the -mask flag which is supposed that restrict my analysis to the mask I am using (just gray matter excluding cerebellum) and I am having results that are showing me some white matter voxels, what am I doing wrong? Here is my 3dttest code

3dttest++ -mask GMmask__MNI152_2009_noCerebellum_final.nii \
-prefix GriefvsHC_AFNI_Mask_CovariateswGM_DIFF_noCerebellum \
-prefix_clustsim GriefvsHC_AFNI_Mask_CovariateswGM_DIFF_noCerebellum \
-tempdir /scratch/global/lbohorquez/Brianna/results/Luisa/temp \
-covariates Covariates_wGM.txt"[0,1,2,3]" \
-center DIFF\
-Clustsim 24 \
-toz \
-setA Grief \
172 ASL_CBF_2MNI_6mm_172_120916.nii \
....more subjects....
-setB HC \
198 ASL_CBF_2MNI_6mm_198_061814.nii \
....more subjects....
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3dttest++ results Attachments

LuisaBoh September 28, 2020 11:53AM

Re: 3dttest++ results

ptaylor September 29, 2020 11:39AM