"an ">&ensp;</span>target <span  title="" class="an ">&ensp;</span>the <span  title="" class="an ">&ensp;</span><span  title="Neurotransmitter" class="an Neurotransmitter">dopaminergic</span><span  title="" class="an ">&ensp;</span><span  title="BrainRegionP" class="an BrainRegionP">ventral</span><span  title="BrainRegionP" class="an BrainRegionP">&ensp;</span><span  title="BrainRegionP" class="an BrainRegionP">tegmental</span><span  title="BrainRegionP" class="an BrainRegionP">&ensp;</span><span  title="Br