Figure 3.
Comparison of response kinetics in SBCs and parasol cells. A, Superimposed STA time courses obtained with an S versus L+M cone-isolating white noise stimulus for SBCs (top), ON-parasol cells (middle), and OFF-parasol cells (bottom), from three preparations. For SBCs, blue represents the S component, and yellow represents the L+M component. For parasol cells, only the L+M component is shown. Time course amplitudes are normalized to arbitrary units (a.u.) to allow comparison of shapes. B, Fits to the S and L+M time courses as well as L+M time-to-peak and time-to-zero crossing for an example cell. C, Comparisons across cell and cone types of mean time-to-peak (left), time-to-zero crossing (middle), and degree of transiency (right) for the three preparations shown in A. Error bars show SE.