Figure 1.

Confocal images showed the location and morphology of labelled PNs in Drosophila brain. (a) Confocal images of Drosophila pupa brain with biotin labelled olfactory PNs showed the detail morphology of the recorded neurons (Figure 1(a)). (b) Single neuron has been labeled (Figure 1(b)). There is one major branch of the soma stalk of the visual projection neuron, and this branch curves dorsomedially, giving off several small collaterals.