answers below, but overall, take a look at https://surfer.nmr.mgh.harvard.edu/fswiki/CoordinateSystems

On 4/6/2020 4:06 PM, Marina Fernández wrote:

External Email - Use Caution

Dear Freesurfer experts,

I hope you can help me with the following questions:

1. What is the best way to know the MNI coordinates to which a vertex of a surface corresponds?

I think freeview will display the mni305 coords

2. I have projected the surfaces of the subjects onto the average subject from this dataset.
Can I know the MNI coordinates corresponding to a vertex of the average subject of my dataset?
Or do I need to project it onto the fsaverage to know the correspondence to de MNI space?

An average subject is always in mni305

3. I know that the average surface is constructed by computing the MNI305 coordinate at each vertex,
But how can I obtain the MNI152 coordinates (instead of MNI305) to which a vertex corresponds? (if it is possible).

See case 8 in website above

Thank you very much in advance.

Best regards,
Marina

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