Hi Folks,<br><br>If<font class="Apple-style-span" face="arial, helvetica, sans-serif"> am comparing the mean thickness for certain gyri (pre-central, post-central) in a controls versus patients.<br></font>
<div><font class="Apple-style-span" face="arial, helvetica, sans-serif">I obtain the thickness measurements from lh.aparc.a2009s.stats and rh.aparc.a2009s.stats</font></div><div><font class="Apple-style-span" face="arial, helvetica, sans-serif">I was wondering if I need to normalize these thickness measurement with the </font><font class="Apple-style-span" face="arial, helvetica, sans-serif">estimated total intracranial volume (eTIV) ?</font></div>
<div><font class="Apple-style-span" face="arial, helvetica, sans-serif"><br></font></div><div><font class="Apple-style-span" face="arial, helvetica, sans-serif">Or has anyone reported that the these are independent of eTIV ? If so then as I understand I would only </font></div>
<div><font class="Apple-style-span" face="arial, helvetica, sans-serif">need to account for age and gender in any subsequent analysis using GLM.</font></div><div><font class="Apple-style-span" face="arial, helvetica, sans-serif"><br>
</font></div><div><font class="Apple-style-span" face="arial, helvetica, sans-serif">Thanks</font></div><div><font class="Apple-style-span" face="arial, helvetica, sans-serif">Mehul</font></div><div><font class="Apple-style-span" face="arial, helvetica, sans-serif"><br>
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