Figure 6. Correlation of changes of light sensitivity and the activation rate in individual cells. On the Х-axis, the relative sensitivity of a cell to light is plotted; the Y-axis shows the relative activation rate of a rod. Each point represents one cell. A: Correlation graph for dopamine (at 0.1–50 µM; n = 37). B: Correlation graph for the D₁R agonist SKF-38393 (at 0.1–50 µM; n = 38). C: Correlation graph for D₂R agonist quinpirole (at 2.5–50 µM; n = 30). D: Correlation graph for D₁–D₂ receptor agonist SKF-83959 (at 50 µM; n = 10).