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Hi Experts,

 

This question may have been addressed elsewhere on the list, but I can’t find a response.

 

I want to smooth BOLD data on the surface. First, I pre-processed the data in FEAT with no smoothing applied. Then I registered the filtered_func data to the anatomical using bbregister. I check the registration matrix looks good by running this command (using example_func as the reference):

• tkregisterfv --mov example_func.nii.gz --reg junk.dat --lta reg/freesurfer/anat2exf.register.dat --surfs

I then resampled my data with mri_vol2surf using the following command:

• mri_vol2surf --src filtered_func_data.nii.gz --out lh_func_native.mgh --srcreg reg/freesurfer/anat2exf.register.dat --hemi lh --projfrac 0.5 --out_type mgh

I then want to smooth this data on the surface. I assume it would be best to run mri_surf2surf and set the target and source subject as the same? Such as this command:

• mri_surf2surf --srcsubject sub-0006 --srcsurfreg lh.sphere.reg --trgsubject srcsubject  --trgsurfreg sphere.reg --hemi lh --sval lh_func_native.mgh  --tval lh_func_native_smoothed.mgz --mapmethod nnf --fwhm 5 --cortex

Please can someone on this list give me some advice on this? Are my command suitible and/or am I missing anything?

Best wishes,

Mason

 

Mason T Wells, MSc PhD student School of Optometry and Vision Sciences & Cardiff University Brain Research Imaging Centre (CUBRIC), School of Psychology Cardiff University Cardiff    CF24 4HQ UK   Email: WellsMT1@cardiff.ac.uk Tel: 02920 879628 Web: Cardiff University webpage

Mason T Wells, MSc Myfyriwr PhD Yr Ysgol Optometreg a Gwyddorau’r Golwg & Canolfan Ymchwil Delweddu’r Ymennydd Prifysgol Caerdydd (CUBRIC), Yr Ysgol Seicoleg Prifysgol Caerdydd Heol Maindy Caerdydd    CF24 4HQ  DU   E-bost: WellsMT1@caerdydd.ac.uk Ffôn: 02920 879628

 

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