Figure 2
The influence of serotonin on the lineage of neuronal precursors. (A) 5-HT does not alter the number of BrdU-labeled cells in the niches and migratory streams in the brains of treated crayfish (dark gray vertical bar) relative to untreated controls (light gray bar). (B) A t-test (P < 0.0005) reveals significant increases in the number of BrdU-labeled cells in cluster 10 in 5-HT (10-9 M) treated crayfish (P. clarkii) compared with untreated controls. Error bars represent standard error of the mean; n = numbers of lateral proliferation zones per group.