How Learning Can Guide Evolution of Communication
How Learning Can Guide Evolution of Communication
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发表时间：
2008
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通讯作者：
Reiji Suzuki;Takaya Arita
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作者：
Reiji Suzuki;Takaya Arita
鲍德温效应被认为是在没有拉马克机制的情况下习得性状的遗传获取过程的可能场景。然而，学习如何促进内部因素引起的动态变化环境中的进化仍然存在争议。我们的目的是阐明学习是否以及如何促进个体之间交流互动产生的动态环境中的进化。我们构建了一个简单的计算模型来描述沟通能力的进化及其表型可塑性。在该模型中，信号和接收过程的自适应通信水平（对应于通信成功时的预期适应度值）由不同的特征组决定，假设它们的适应度与特征之间上位相互作用的影响之间存在相关性。只有当信号发送者和接收者的水平相同时，沟通才会成功，并且个体试图通过学习过程来提高他们的沟通水平，在学习过程中，可塑性状的值可以根据其基因决定的值进行修改。进化实验清楚地表明，鲍德温效应反复发生，促进了这种动态环境中通信的适应性进化。
The Baldwin effect is known as a possible scenario of the genetic acquisition process of a learned trait without the Lamarckian mechanism. However, it is still controversial how learning can facilitate evolution in dynamically changing environments caused by internal factors. Our purpose is to clarify whether and how leaning can facilitate evolution in dynamic environments which arise from communicative interactions among individuals. We constructed a simple computational model for the evolution of communication ability and its phenotypic plasticity. In the model, the levels of adaptive communication, which correspond to the expected fitness value when the communication results in success, of signalling and receiving processes are determined by different sets of traits under the assumption of the correlation between their fitness and the effects of epistatic interactions among traits. A communication is successful only when the levels of the signaller and the receiver are the same, and the individuals try to improve their communication levels through the learning process in which the values of plastic traits can be modified from their genetically determined values. The evolutionary experiments clearly showed that the Baldwin effect repeatedly occurred and facilitated the adaptive evolution of communication in this type of dynamic environments.