part of capable of expresses sends synaptic output throughout Gr28b antennal lobe glomerulus VP2 neuron of aristal sensillum aristal sensory neuron VP2 aristal neuron (VP2) FBbt:00007575 TRN_VP2 ArB hot cell VP2RN hot aristal neuron TRN_VP2 fly_anatomy.ontology FlyBrain_NDB:10369 warm cell VFB:FBbt_00007575 Adult unilateral thermosensory neuron of the aristal sensillum with an axon that innervates antennal lobe glomerulus VP2 (Stocker et al., 1990; Benton et al., 2025). It has small, finger-like sensory endings (Budelli et al., 2019) and expresses the warmth-sensor Gr28b.d (Ni et al., 2013). It is transiently activated by temperature increases and transiently inhibited by temperature decreases (Budelli et al., 2019). In addition, it has increased steady state spiking at higher temperatures (Budelli et al., 2019). There are around 3-4 of these cells per hemisphere (Marin et al., 2020). warm aristal neuron warm thermoreceptor cells in the arista adult antennal lobe receptor neuron unilateral antennal lobe receptor neuron detection of temperature stimulus sensory perception of hot stimulus