Directional Summation in Non-direction Selective Retinal Ganglion Cells
Figure 13
HCN modulates directional summation.
A) A model of the cell in Figure 10. Circles indicate input sites. Traces are for activation of the middle (M) 3 locations moving away from the soma (color) or toward the soma (black). B) Plots of directional summation (DS) ([away-toward]/toward*100) for amplitude and charge. P = 3 most proximal locations, M = middle 3 locations, D = 3 most distal locations, A = alternating locations (distal, middle, proximal). C) A model of another cell and activation of two dendrites. D) Plots of DS for both dendrites.