Hi Rigel, I suggest to use the low resolution subject-specific source models, which are part of the release data and are expressed in native space. They exist in a 4k and 8k vertex-per-hemisphere version. See page 92 of the S900 release manual.
Best wishes, Jan-Mathijs On 15 Jan 2019, at 15:33, Rigel Wang <rigel.w...@neuroinformatics-collaboratory.org<mailto:rigel.w...@neuroinformatics-collaboratory.org>> wrote: Hi HCP team, Thanks a lot for your dedication to science. I am using your HCP-S900 dataset and Connectome Workbench for research. Specifically, in order to compare the E/MEG inverse solution, we are expecting to get the low resolution resting state fMRI on native space surface. We are trying to use HCP-S900 dataset for a test. For example, we want to downsample the105923\MNINonLinear\Result\rfMRI_REST1_LR\rfMRI_REST1_LR_Atlas_hp2000_clean.dtseries.nii. First, I use the wb_coomand -surface-resample in matlab to downsample the anatomical data( system([wb_command, ' -surface-resample ',' ',file.highResSurface{hemi},' ',file.highResSphere{hemi},' ',file.lowResSphere{hemi},' ', res_method,' ',file.lowResSurface{hemi}]);)for getting a low resolution suface which expecting to be around 3k vertices for each hemisphere. PS: downsampling the surface and projecting back to native space is for calculating the E/MEG leadfied. Then I am trying to use the wb_coomand -cifti-resample for downsample the functional data( system([wb_command, ' -cifti-resample ',' ',file.highResCii,' ',res_src_direction,' ',cifti_templete,' ',res_template_direction,' ',res_surface_method,' ', res_volume_method,' ',file.lowResCii]);) . Question: 1. I don't know what should I put in the <cifti_templete> for wb_coomand -cifti-resample? 2. Can I use the same project matrix from \105923\MNINonLinear\fsaverage_LR32k\105923.R.{pial or white}.32k_fs_LR.surf.gii file, which is 4*4 matrix, for projecting low-resolution 3k_fs_LR back, the output of -surface-resample, to individual native space? Thank you! Best, Rigel _______________________________________________ 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
