Re: [Freesurfer] Transform functional surface data to volume

2019-04-03 Thread Zhi Li
External Email - Use Caution I would like to apply dynamic causal modelling analysis to surface based data, and I posted other several related questions before. I am a newbie to FreeSurfer. According to my understanding, the normalization in FSFAST should take the advantages of str

Re: [Freesurfer] Transform functional surface data to volume

2019-04-03 Thread Greve, Douglas N.,Ph.D.
why not just map the fmri volume into the anatomical volume (mri_vol2vol)? Why go through the surface at all? On 4/3/19 12:34 PM, Zhi Li wrote: > > External Email - Use Caution > > Refer to my previous question. I found that 'vlrmerge' could be used > to visualize the whole brain activat

Re: [Freesurfer] Transform functional surface data to volume

2019-04-03 Thread Zhi Li
External Email - Use Caution Refer to my previous question. I found that 'vlrmerge' could be used to visualize the whole brain activation through mapping the left and right surface to the volume. But the data generated by vlrmerge cannot be used for analyzing. Hence I am wandering

Re: [Freesurfer] Transform functional surface data to volume

2019-04-03 Thread Zhi Li
External Email - Use Caution Sorry for my confusing explanation. I mean cortical grey matter. How could I map the left and right surface fmri data to volume? For example, how to transform the preprocessed left surface data 'fmcpr.odd.sm5.fsaverage.lh.nii.gz' to 3D volume? Thanks,

Re: [Freesurfer] Transform functional surface data to volume

2019-04-03 Thread Greve, Douglas N.,Ph.D.
you mean just subcortical gray matter? You could map the aseg into the functional space with mri_label2vol (run with --help to get docs and examples). Then mri_binarize --i aseg.func.nii.gz --subcort-gm --o subcortgm.mgz, then mask the fmri time series (fmcpr.nii.gz) using mri_mask. On 4/3/19

Re: [Freesurfer] Transform functional surface data to volume

2019-04-03 Thread Zhi Li
External Email - Use Caution I see and thank you very much. May I know If I could transform the surface-based time series data to volume space, like the space of subcortical data 'fmcpr.odd.sm5.mni305.2mm.nii.gz'? I know I could get the whole brain 3D volume fmri data by changing t

Re: [Freesurfer] Transform functional surface data to volume

2019-04-02 Thread Greve, Douglas N.,Ph.D.
On 4/2/19 4:23 PM, Zhi Li wrote: > > External Email - Use Caution > > Dear Freesurfer experts, > > I would like to transform the task-based surface data to volume. May I > know if it is applicable? I tried "mri_surf2vol --o test.nii.gz > --subject sub002 --so fs/sub002/surf/lh.white >

[Freesurfer] Transform functional surface data to volume

2019-04-02 Thread Zhi Li
External Email - Use Caution Dear Freesurfer experts, I would like to transform the task-based surface data to volume. May I know if it is applicable? I tried "mri_surf2vol --o test.nii.gz --subject sub002 --so fs/sub002/surf/lh.white fMRI/sub002/task/001/fmcpr.odd.sm5.fsaverage.l