自适应同步与预期动力系统
Adaptive Synchronization and Anticipatory Dynamical System
摘要：
许多生物系统可以感知刺激输入的周期性变化，并在输入被移除后产生适时的预期反应。这样的系统显示出记忆效应，用于在刺激中保留定时信息，并且不能从被动振荡系统的传统同步考虑来理解。为了理解这种预期的现象，我们考虑振荡器从可激发的系统与自适应动态添加。利用这样的系统，可以获得与实验中类似的适时的刺激后反应。此外，一个众所周知的模型，工作记忆具有类似的预期动态时，自适应机制与突触促进。最后一项发现表明，这种类型的振荡器在具有可塑性的神经元系统中很常见。
英文摘要：
Many biological systems can sense periodical variations in a stimulus input and produce well-timed, anticipatory responses after the input is removed. Such systems show memory effects for retaining timing information in the stimulus and cannot be understood from traditional synchronization consideration of passive oscillatory systems. To understand this anticipatory phenomena, we consider oscillators built from excitable systems with the addition of an adaptive dynamics. With such systems, well-timed post-stimulus responses similar to those from experiments can be obtained. Furthermore, a well-known model of working memory is shown to possess similar anticipatory dynamics when the adaptive mechanism is identified with synaptic facilitation. The last finding suggests that this type of oscillators can be common in neuronal systems with plasticity.
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