Figure 4.

Development of the NSM synaptic branches. Flattened confocal stacks are shown for larval stages L1 (A) and L4 (B). Note the prominent synaptic branches at the L4 but not L1 stage. The graph shows the average number of synaptic branches from at least 11 individuals for each age or condition. 1d-lev and 1d-ser refer to animals grown in levamisole or serotonin from the L1 stage, respectively, and scored as 1-day old adults. Asterisks indicate significant differences with p < 0.05 between the indicated groups.