Is the BV map a surface or a volume?

On 05/16/2017 03:22 PM, Jerry Jeyachandra wrote:

Hi Freesurfer list,

I have a statistical map (.nii format) produced from analysis performed in BrainVoyager that I’d like to register with the anatomical model produced with Freesurfer’s recon-all, this is on a single-subject basis from the same raw data. I have several questions with respect to this (hopefully possible) process:

1. I’ve noticed that using mri_info (and loading into freeview on top of orig.mgz) that the coordinate spaces do not match, does freesurfer have a process to align the statistical map to orig.mgz?
2. Currently, loading in the .nii image is interpreted as an anatomical image, is there any way I can indicate to freesurfer that it is a functional map such that I can work with thresholding?
3. When aligned with the orig.mgz anatomical image, is there a process that will allow me to project it onto the segmented model? Specifically, I’d like to extract plial surface coordinates associated with the regions of BOLD activation.

Thanks,

Jerry Jeyachandra

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