Hello, I have an anatomical VOI that I created using BrainVoyager and have exported to nii format. I would like to use this VOI as a mask. Can I use this file directly as a mask, or do I need to change it first?
For example, if I want to use this VOI as a mask when fitting a glm:
glm = FirstLevelModel(mask_img=masker)
Can “masker” be the original VOI file or a does it need to be a converted file?
Any help would be greatly appreciated!