Dear Mahinda,

For the mris_preproc, I think Doug posted already explaining how it works - it uses a jacobian correction in a way that makes it mass-conservative. You may want to search the archives. For the ROIs, the standard method is to add up the areas of their constituent vertices, so it should be straightforward to describe I believe. And the statistics are based on the GLM, which is already well entrenched in the literature, with no need for details other than describing carefully the design you used and how you corrected for multiple testing.

About a general discussion on area, the methods, etc, then yes, that would be the paper that you know already.

All the best,

Anderson

2013/1/17 MAHINDA YOGARAJAH y.mahinda@gmail.com

Hi,

Sorry to be a little more specific - I am aware of freesurfer area references such as the WInkler reference but basically wanted a few lines, and the most appropriate references, that summarises the technical approach used for group area comparisons in qdec (using updated mris_preproc), and simple ROI group area comparisons.

Thanks,

Mahinda _______________________________________________ Freesurfer mailing list Freesurfer@nmr.mgh.harvard.edu https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer

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