On 12/30/2019 7:55 PM, Star Xi wrote:
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Dear FS experts,
I’m processing the task-related fMRI using FS-FAST. I check the quality assurance and modified some subjects’ registration file(named new one as “register_manual.lta”). Then I do the first level analysis and group analysis.
My first question is:
should I apply the new registration file into the following first level analysis and group analysis?
You should keep the registration filenames the same, then just re-run selxavg3-sess. it will determine that the registration file changed and then update everything afterwards.
I found a tutorial may be answer my question , but I’m not sure about it.
http://surfer.nmr.mgh.harvard.edu/fswiki/MultiModalTutorialV6.0/FMRIGroupAna...
Assemble the data using new registration file by the command:
mris_preproc --target fsaverage --hemi lh \
--iv fbirn-101/ces.nii fbirn-101/register.lta \
--iv fbirn-103/ces.nii fbirn-103/register.lta \
--iv fbirn-104/ces.nii fbirn-104/register.lta \
--projfrac 0.5 \
--out lh.ces.mgh
Then use “mri_surf2surf”, “mri_glmfit” to do the group analysis.
My second question is: does the following two procedures both feasible for fMRI group analysis ?
1. Isxconcat-sess —> mri_glmfit —> mri-glnfit-sim 2. mris_preproc —> mri_surf2surf —> mri_glmfit —> mri-glmfit-sim
Both are feasible, but isxconcat-sess will be easier
Thank you!
Regards,
Star
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