Figure 4. Convergence and independence of mitral cell inputs.

a, Convergence index for each cortical injection experiment is represented by a diamond, with the type and layer of starter cells specified by the color code above. b, Multiple regression analysis to estimate the convergence indices of starter cells located in different layers of the AON and PC. Estimated mean convergence indices (“x”) and the corresponding 95% confidence intervals (grey bars) are shown. Data from actin-CreER and GAD2-CreER were analyzed separately. Injections into amygdala produced only one sample that contained layer I cells and were therefore excluded. c, Schematic of dually labeled glomeruli (D) resulting from two starter cells (Dt) or a single starter cell (Ds). Comparison of the distributions of Ds derived from experimentally observed frequency of D (Data Ds, red) and from simulated D based on the null hypothesis detailed in the Methods (Random Ds, blue). For each sample, the distributions of “Data Ds” and “Random Ds” are shown by colored heat maps. *, p<0.05.