Hi Prof. Jan-Mathijs,
Thank you for your fast reply, this is very useful, I did not notice this 
low-resolution source space anatomical file before.
Therefore, I need to convert this *.gii to CIFTI format as input to 
-cifti-resample <cfti-template>? Or its corresponding MEG CIFTI data as input 
to -cifti-resample <cfti-template>?
Vielen Dank
Best,
Rigel

________________________________
发件人: Schoffelen, J.M. (Jan Mathijs) <jan.schoffe...@donders.ru.nl>
发送时间: 2019年1月15日 6:41
收件人: Rigel Wang; HCP-Users@humanconnectome.org
抄送: supp...@humanconnectome.org; Pedro Antonio Valdés-Sosa
主题: Re: [HCP-Users] About wb_command -cifti-resample

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

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Content preview:  Hi Prof. Jan-Mathijs, Thank you for your fast reply, this
  is very useful, I did not notice this low-resolution source space anatomical
   file before. Therefore, I need to convert this *.gii to CIFTI format as input
   to -cifti-resample <cfti-template>? Or its corresponding MEG CIFTI data as
   input to -cifti-resample <cfti-template>? Vielen Dank Best, Rigel [...] 

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Content preview:  Hi Prof. Jan-Mathijs, Thank you for your fast reply, this
  is very useful, I did not notice this low-resolution source space anatomical
   file before. Therefore, I need to convert this *.gii to CIFTI format as input
   to -cifti-resample <cfti-template>? Or its corresponding MEG CIFTI data as
   input to -cifti-resample <cfti-template>? Vielen Dank Best, Rigel [...] 

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