To swim or not to swim: A population-level model of Xenopus tadpole decision making and locomotor behaviour.

To swim or not to swim: A population-level model of Xenopus tadpole decision making and locomotor behaviour.
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DOI:
10.1016/j.biosystems.2017.07.004
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发表时间:
2017-11
期刊:
Bio Systems
影响因子:
--
通讯作者:
Li WC
Li WC
中科院分区:
其他
文献类型:
--
作者:
Borisyuk R;Merrison-Hort R;Soffe SR;Koutsikou S;Li WC

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我们提出了一个详细的计算模型,相互作用的神经元群体,模仿孵化非洲爪蟾蝌蚪神经系统。该模型包括四个感觉通路,感觉信息的集成商,和一个中央模式发生器(CPG)网络。不同模态的感觉通路接收来自“环境”的输入;然后处理和整合这些输入以选择最合适的运动动作。CPG群体执行所选择的动作,在运动神经元群体中生成输出。因此,该模型描述了一个详细的和生物学上合理的信息处理链,从外部信号到传感器,感觉通路,整合和决策,动作选择和执行,最后,产生适当的运动活动和行为。我们展示了该模型如何产生适当的行为,以响应选定的情况下,其中包括一系列的“环境”信号。这些行为可能是相对复杂的,由于嘈杂的感觉通路和自发行动的可能性。
We present a detailed computational model of interacting neuronal populations that mimic the hatchling Xenopus tadpole nervous system. The model includes four sensory pathways, integrators of sensory information, and a central pattern generator (CPG) network. Sensory pathways of different modalities receive inputs from an “environment”; these inputs are then processed and integrated to select the most appropriate locomotor action. The CPG populations execute the selected action, generating output in motor neuron populations. Thus, the model describes a detailed and biologically plausible chain of information processing from external signals to sensors, sensory pathways, integration and decision-making, action selection and execution and finally, generation of appropriate motor activity and behaviour. We show how the model produces appropriate behaviours in response to a selected scenario, which consists of a sequence of “environmental” signals. These behaviours might be relatively complex due to noisy sensory pathways and the possibility of spontaneous actions.
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