[Freesurfer] Addendum: Surface-Based Group Analysis Results --> MNI coordinate space

Had made a slight error in my previous request. Here it is, clarified:

Is there a straightforward way to convert Surface-based Group Analysis results (e.g. sig.mgh) to ANALYZE format in conventional MNI coordinate space (i.e. viewable with FSL)? What steps, and what tools, should I use to perform such a conversion?

Thanks, Eric

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