Mean response proportions and fitted functions.

Each graph presents data from a different stimulus type, defined in the graph title. Mean proportion of synchronous responses (blue squares for SJ) and video first responses (red triangles for TOJ) are plotted for each COA level along with their corresponding best fitting Gaussian functions. The PSS derived from each fit is indicated by appropriately coloured (blue = SJ, red = TOJ) vertical dashed lines. Errorbars are ± one standard error of the mean.