<?xml version="1.0" encoding="utf-8"?><!DOCTYPE article  PUBLIC '-//OASIS//DTD DocBook XML V4.4//EN'  'http://www.docbook.org/xml/4.4/docbookx.dtd'><article><articleinfo><title>DefiningSma</title><revhistory><revision><revnumber>3</revnumber><date>2013-03-08 10:28:25</date><authorinitials>localhost</authorinitials><revremark>converted to 1.6 markup</revremark></revision><revision><revnumber>2</revnumber><date>2008-06-29 13:22:21</date><authorinitials>customer11311.pool1.Liverpool-MER6166-BAS0001.orangehomedsl.co.uk</authorinitials></revision><revision><revnumber>1</revnumber><date>2008-06-29 13:20:49</date><authorinitials>customer11311.pool1.Liverpool-MER6166-BAS0001.orangehomedsl.co.uk</authorinitials></revision></revhistory></articleinfo><section><title>Defining SMA</title><para>How to define SMA on anatomy.  Think this is wrong?  Let <ulink url="https://imaging.mrc-cbu.cam.ac.uk/methods/DefiningSma/methods/MatthewBrett#">MatthewBrett</ulink> know. </para><para>This text and pictures stolen with gratitude from Sam Burnand and Rich Armstrong.  </para><para>The pre-SMA and SMA proper were defined with the following boundaries (Picard and Strick, 2001). </para><para><inlinemediaobject><imageobject><imagedata fileref="https://imaging.mrc-cbu.cam.ac.uk/methods/DefiningSma?action=AttachFile&amp;do=get&amp;target=sma_coronal.png"/></imageobject><textobject><phrase>sma_coronal.png</phrase></textobject></inlinemediaobject> </para><para><inlinemediaobject><imageobject><imagedata fileref="https://imaging.mrc-cbu.cam.ac.uk/methods/DefiningSma?action=AttachFile&amp;do=get&amp;target=sma_sagittal.png"/></imageobject><textobject><phrase>sma_sagittal.png</phrase></textobject></inlinemediaobject> </para><itemizedlist><listitem><para>Inferior border: Cingulate sulcus </para></listitem><listitem><para>Superior border: Medial fold of cortex </para></listitem></itemizedlist><para>All following vertical borders are perpendicular to the AC-PC line; the line joining anterior and posterior commissures. </para><itemizedlist><listitem><para>Anterior border: anterior border of the genu of the corpus callosum </para></listitem><listitem><para>Posterior border: posterior commissure </para></listitem></itemizedlist><para>Separation into pre-SMA and SMA proper (pre-SMA is anterior): anterior commissure </para></section></article>