Usually in the deep white matter, but not in the cortex. I would recommend using TBSS for comparing white matter across subjects. In the future we will hopefully be able to offer data aligned based on fiber orientations.
Peace, Matt. From: <hcp-users-boun...@humanconnectome.org<mailto:hcp-users-boun...@humanconnectome.org>> on behalf of Aaron C <aaroncr...@outlook.com<mailto:aaroncr...@outlook.com>> Date: Thursday, December 21, 2017 at 3:12 AM To: "hcp-users@humanconnectome.org<mailto:hcp-users@humanconnectome.org>" <hcp-users@humanconnectome.org<mailto:hcp-users@humanconnectome.org>> Subject: [HCP-Users] A question about registering the HCP diffusion data to the standard space Dear HCP experts, I have a question about registering the HCP diffusion data to the standard space for cross-subject analysis. I see the file "acpc_dc2standard.nii.gz" in the folder ${StudyFolder}/${Subject}/MNINonLinear/xfms/ Would you please suggest if the following command would be appropriate: applywarp --ref=MNI152_T1_1mm --in=dti_FA.nii.gz --warp=acpc_dc2standard.nii.gz --out=dti_FA_warped.nii.gz Should I use any reference image specific for the HCP data instead of "MNI152_T1_1mm"? After this registration step, I guess the white matter voxels in the file "dti_FA_warped.nii.gz" should be comparable across different subjects? Thank you. _______________________________________________ HCP-Users mailing list HCP-Users@humanconnectome.org<mailto:HCP-Users@humanconnectome.org> http://lists.humanconnectome.org/mailman/listinfo/hcp-users _______________________________________________ HCP-Users mailing list HCP-Users@humanconnectome.org http://lists.humanconnectome.org/mailman/listinfo/hcp-users