has characteristic receives synaptic input in region sends synaptic output throughout superior lateral protocerebrum superior medial protocerebrum superior intermediate protocerebrum secondary neuron adult lateral horn output neuron mushroom body PPL1 neuron adult DL2 lineage neuron mushroom body alpha' lobe slice 3 MB-alpha' neuron of the dopaminergic PPL1 cluster 2013-04-05T04:03:58Z FBbt:00110321 PPL1 neuron whose main axon innervates the tip of the mushroom body alpha' lobe (segment 3) (Mao and Davis, 2009; Aso et al., 2014; Li et al., 2020). A fiber also crosses the midline to innervate the contralateral alpha' lobe tip (Mao and Davis, 2009; Li et al., 2020). Most of its dendritic arborizations are found in the superior intermediate and lateral protocerebrum, with a smaller amount in the superior medial protocerebrum and lateral horn (Aso et al., 2014). There is one neuron of this type in each hemisphere (Aso et al., 2014; Li et al., 2020) and it develops from the CP3 (DL2) neuroblast during larval development (Ren et al., 2016). PPL1-04 PPL104 PPL1-alpha'3 VFB:FBbt_00110321 fly_anatomy.ontology PPL104 bilateral