le="" class="an ">&ensp;</span><span  title="BrainRegionP" class="an BrainRegionP">neocortex</span><span  title="" class="an ">&ensp;</span>and <span  title="" class="an ">&ensp;</span><span  title="BrainRegionP" class="an BrainRegionP">hippocampus</span><span  title="" class="an ">&ensp;</span>that <span  title="" class="an ">&ensp;</span>differ <span  title="" class="an ">&ensp;</span>markedly <span  title="" class="an ">&ensp;</span>in <span  title="" class="an ">&ensp;</span>their <span  title="" class=