Fig 4. Characterization of the responses.

Panels A and B correspond to two example players. Top: Black line: Mean response $\overline{r}$ as a function of the target color t. Gray area: Range of values in $\overline{r}\left(t\right)\pm \epsilon \left(t\right)/\sqrt{n}$. Middle: Mean error $\overline{r}\left(t\right)-t$ (black line), together with expected error of the mean $\epsilon \left(t\right)/\sqrt{n}$ (gray area). Bottom: Fitted curve Δ(t), together with the experimental data $\overline{r}\left(t\right)-t$ (black dots) and the expected error of the mean $\epsilon \left(t\right)/\sqrt{n}$ (error bars). In the middle and bottom panels, the vertical scale spans from −π/6 to + π/6.