has soma location capable of part of has synaptic IO in region supraesophageal ganglion neuron superior lateral protocerebrum superior medial protocerebrum adult LP neuron PLP neuron lateral posterior neuron fly_anatomy.ontology LPN LPN LPN-AstA Adult period-expressing neuron with its soma in the cell body rind of the posterior lateral protocerebrum, medial to the LNd cluster (Shafer et al., 2006; Helfrich-Forster, 2005; Reinhard et al., 2022). Its neurite bifurcates in the superior clamp, sending branches to the superior lateral and superior medial protocerebra, where it arborizes (Reinhard et al., 2022). It is cholinergic and expresses the Allatostatin A, Allatostatin C and Diuretic hormone 31 neuropeptides at varying levels throughout the day (Diaz et al., 2019; Ni et al., 2019; Reinhard et al., 2022; Reinhard et al., 2024). It also expresses Dh44 (Reinhard et al., 2024). It is involved in regulation of circadian sleep and activity levels (Ni et al., 2019; Reinhard et al., 2022). There are around three of these cells per hemisphere, with one having a slightly broader arborization pattern and a different connectivity profile compared to the other two (Reinhard et al., 2022). FBbt:00007432 Reinhard et al. (2022) identify that two subtypes exist, but do not name them. VFB:FBbt_00007432 allatostatin A neuron allatostatin C neuron Dh31 neuron adult Dh44 neuron of brain adult cholinergic neuron adult pacemaker neuron cell body rind of adult posterior lateral protocerebrum circadian sleep/wake cycle process