Figure 5.
Activity transformation across neuronal populations. Color-coded activity patterns, median traces, and concentrations-response curves for isopentyl acetate in glomerulus DL5 (broadening case) (A), 1-butanol in DM2 (linear case) (B), and propionic acid in DC2 (complex case) (C) in local neurons, OSNs, and PNs. Top, Each picture is scaled to the values indicated. Median traces are shown with odor concentration (10−7 to 10−2) given by trace-color shade. Scaling bars indicate the same response amplitude for all graphs belonging to the same odor/glomerulus combination. Bottom, Concentration–response relationships for each odor in the indicated glomerulus for all lines. Median responses are shown together with the corresponding interquartile ranges (gray surfaces). Note the responses in PNs in the absence of OSN input in A, the parallel concentration–response curves for all lines in B, and the complex relationships in C.