Skip to main content
. Author manuscript; available in PMC: 2013 Jun 26.
Published in final edited form as: Clin Exp Ophthalmol. 2012 Apr 12;40(4):369–380. doi: 10.1111/j.1442-9071.2012.02770.x

Figure 2. The ‘Hockey-Stick’ model relating sensitivity and ganglion cell (GC) receptive field number (both in log units).

Figure 2

The datapoints from Garway-Heath et al. (2000) 12 and empirical plot of Swanson et al. (2004)38 is indicated by the black symbols and solid black line respectively. Anderson & Knighton’s (1988) function 66, with RGC receptive field number derived from acuity perimetry, is approximated by the grey solid line. The size of the stimulus in relation to the critical area may explain the change in slope at 15 degrees eccentricity. The spatial summation curve predicted by a model of cortical pooling is shown for comparison 21. See text for details.