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The evolution of signal form: Effects of learned versus inherited recognition

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Figure

Figure 1: Learning curves as a function of the amount of experience (number of back-propagation iterations) and signal exaggeration
Figure 2: Coevolution between senders and receivers. Evolutionary trajectories of exag-geration (solid and dotted line), receiver response to− s(solid and crossed line), receiverresponse to s+(dashed line) and sender fitness(solid line) are shown for (a) in
Figure 3: Signal exaggeration evolved in simulations with learned recognition as a func-tion of amount of experience (number of back-propagation iterations)
Figure 4: Receiver biases as a function of amount of experience. Cost parameter, c, is 1.(a) Comparison of receiver output to the signal evolved by sender (open circles) and the“best” signal (filled circles) (whose output is closest to target, see text)
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