Comparison of networks’ responses with human psychophysics.

<p>(A) Magnitude estimation functions generated by the evolved circuits. Average circuit responses when the target sensor was presented with varying luminance values and the luminance at the context sensor was held constant at three different levels (dashed lines). The curves show the average circuit responses to increasing target luminance values in different contexts. (B) Circuit responses to stimulus contrast. The two curves are the responses of the target sensor to luminance values presented with a lesser (blue) or greater (turquoise) luminance at the context sensor. Dashed lines indicate different circuit responses to the same target luminance when presented in these different contexts.