p027fig01.19 The ventral What stream is devoted to perception and categorization.  The dorsal Where stream is devoted to spatial representation and action.  The Where stream is also often called the Where/How stream because of its role in the control of action.<BR>||  <TABLE border="1"><TR><TD><B>Spatial representation of action</b></td><TD><B>Perception categorization</b></td></tr><TR><TD>WHERE dorsal</td><TD>WHAT ventral</td></tr><TR><TD>Parietal pathway "where"</td><TD>Temporal pathway "what"<TR><TD>Posterior Parietal Cortex (PPC)</td><TD>Inferior temporal Cortex (IT)</td></tr><TR><TD>Lateral Prefrontal Cortex (LPFC)</td><TD>Lateral Prefrontal Cortex (LPFC)</td></tr></table>