If you have the transform in the form of an LTA file, I think all you need to do is put it in the subject/mri/transforms folder, then spec --xfrom your.lta when running make_average_subject

On 3/25/2021 11:33 AM, Trisanna Sprung-Much wrote:

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Hi Doug

 

The scans were registered (6 parameter) to a common chimp template prior to input to recon-all. The surfaces have reconstructed nicely and match the input volumes.

I would now like to create an average surface from these surfaces that are “in the space of the average chimp volume”.

 

Trisanna

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From: <freesurfer-bounces@nmr.mgh.harvard.edu> on behalf of "Douglas N. Greve" <dgreve@mgh.harvard.edu>
Reply-To: Freesurfer support list <freesurfer@nmr.mgh.harvard.edu>
Date: Thursday, March 25, 2021 at 11:24 AM
To: "freesurfer@nmr.mgh.harvard.edu" <freesurfer@nmr.mgh.harvard.edu>
Subject: Re: [Freesurfer] make_average_subject without Talairach transform

 

If you don't have a transform, how will you align the subjects into a common space?

On 3/25/2021 10:19 AM, Trisanna Sprung-Much wrote:

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Hi there

 

I’d like to know if it is possible to create an average volume and average surface of several subjects without having to incorporate the Talairach transform and no transform at all.  

 

Thank you,

 

Trisanna Sprung-Much

Research Associate

McGill University

MD Anderson Cancer Centre

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