Figure 5. Gain change and narrow-range gain relationships in experiment 1. A, Gain slope, β1, as a function of the gain intercept, β0 (Eq. 6), for both dimensions (azimuth and elevation, denoted in color), all three orderings (narrow-to-broad, broad-to-narrow, random), and all eight participants (N = 48). B, Same analysis as in A, performed for a selected target range of 30°, shared across all blocks ([–15, +15]° for azimuth and elevation). Results are qualitatively similar as in A. C, Gain intercepts for azimuth as a function of gain intercept for elevation. The various colors denote individual subjects. Colored symbols denote best-fit parameters, error bars indicate 95% confidence interval. Bold black lines denote the best fit simple linear regression line through the data. Dotted line in A and B indicates where data would lie if the broad-range gain equals 1. In C, the dotted line indicates the x = y unity line.