When you say "surface" do you mean a surface overlay or a surface with xyz and neighbor relations? Assuming you mean an overlay (eg, something in an mgh or mgz file), you can try fscalc. Or do you have 25 frames  in a single file and you want to split them into separate files? You might be able to convert the mgh/mgz file to nii and use FSL tools and then convert them back (sometimes works, sometimes not)

On 6/12/2020 10:24 AM, Mason Wells wrote:

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Hi Experts,

Apologies if this is a rather simple question. Is there a FreeSurfer equivalent of fslmaths? I have an atlas overlay that has 25 visual areas in a single .mgz file. I want to separate each atlas region into a different file, so that I end up with 25 surface atlas regions. Is there a command that could achieve this?

My next question is whether or not there is a Freesurface command that can be used to complete surface based correlations. For example, if I want to check for the overlap between two ROIs. I have been using fslcc to do this in the volume, but perhaps freesurfer has something similar to do this on the surface?

Cheers,

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/*: wells...@cardiff.ac.uk <mailto:wells...@cardiff.ac.uk>

*/Tel/*: 02920 879628

*/Web/*: Cardiff University webpage <https://www.cardiff.ac.uk/people/research-students/view/974214->

        

*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/*: wells...@caerdydd.ac.uk <mailto:wells...@caerdydd.ac.uk>

*/Ffôn/*: 02920 879628


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