receives synaptic input in region sends synaptic output to region medulla layer M8 lobula layer 4 lobula plate layer 1 lobula plate layer 2 lobula plate layer 3 lobula plate layer 4 Y neuron Y neuron Y1 fly_anatomy.ontology FlyBrain_NDB:10178 Y13 Y1 Y1 VFB:FBbt_00003912 Wide-field Y neuron with a wide, unstratified arborization field in all layers of the lobula plate, a wide, thin, terminal arborization domain in lobula layer 5 and a small terminal arborization domain in medulla layer M8 (Morante and Desplan, 2008; Fischbach and Dittrich, 1989). It is a glutamatergic neuron (Raghu and Borst, 2011). The neurotransmitter was assessed by labelling cells with a vGlut[CNSIII]-GAL4 driver (FBti0129148) (Raghu and Borst, 2011). Pre- versus postsynaptic innervation judged by scoring of terminal morphology from figures in Fischbach and Dittrich (1989) as assessed by FlyBrain Neuron DB. FBbt:00003912 lobula layer 5 adult glutamatergic neuron optic lobe wide-field columnar neuron