Summary of the statistical significance of the curve fits shown in Figure 5A.

Column 1: Each included neuron contributed three fits, one for each eye position. Columns 2−5: The proportion of Gaussian and sigmoidal curve fits that were individually significant. Column 6: The proportion of neuron-eye position combinations for which the observed Gaussian R2 value was significantly greater than 95% of the bootstrapped sigmoidal R2 values generated for that neuron and eye position; corresponds to the proportion of green data points in Figure 5A.