afni.nimh.nih.gov

Hi All,
I need to import certain sub-BRIKs of the output from 3dDeconvolve into a Matlab toolbox. Is there a way to write the sub-BRIKs into .mat files? I saw this afni matlab library (https://sscc.nimh.nih.gov/afni/matlab/). Is that what I should be using? Just wanted to check since it's an old page!

Thank you,
Mrinmayi