I&#39;m looking at both cortical thickness and surface area differences between two groups. I&#39;ve been using mris_anatomical_stats to retrieve values but had a few questions:<div><br></div><div>1) Do I need to do separate mris_anatomical_stats using different thickness files (bolded below) to get cortical thickness and surface area measures. For example:</div>
<div><br></div><div>cortical thickness - mris_anatomical_stats -l lh.v1.label -t <b>lh.thickness</b> -b -f BV01/stats/lh.v1.stats BV01 lh</div><div>surface area - mris_anatomical_stats -l lh.v1.label -t <b>lh.area </b>-b -f BV01/stats/lh.v1.stats BV01 lh</div>
<div><br></div><div> Or, since the output files include all of these measures, is it fine to just run one of the two?</div><div><br></div><div>2) The output files for both analyses run above (with different thickness files) have identical values for everything except for tray matter volume. Using lh.thickness file - grayvol = 8082; using lh.area file - grayvol = 4029. Can anyone clarify why this happens?</div>
<div><br></div><div>3) The default surface area values are for the white matter surface. How do I run mri_anatomical_stats to get the pial surface? I&#39;ve tried mris_anatomical_stats -l lh.v1.label -t <b>lh.area.pial </b>-b -f BV01/stats/lh.v1.stats BV01 lh but I get identical values for everything (except grayvol).</div>
<div><br></div><div>Thanks!</div><div>Krista</div>