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Dynamic neural fields as a step toward cognitive neuromorphic architectures

机译:动态神经场是迈向认知神经形态架构的一步

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摘要

Dynamic Field Theory (DFT) is an established framework for modeling embodied cognition. In DFT, elementary cognitive functions such as memory formation, formation of grounded representations, attentional processes, decision making, adaptation, and learning emerge from neuronal dynamics. The basic computational element of this framework is a Dynamic Neural Field (DNF). Under constraints on the time-scale of the dynamics, the DNF is computationally equivalent to a soft winner-take-all (WTA) network, which is considered one of the basic computational units in neuronal processing. Recently, it has been shown how a WTA network may be implemented in neuromorphic hardware, such as analog Very Large Scale Integration (VLSI) device. This paper leverages the relationship between DFT and soft WTA networks to systematically revise and integrate established DFT mechanisms that have previously been spread among different architectures. In addition, I also identify some novel computational and architectural mechanisms of DFT which may be implemented in neuromorphic VLSI devices using WTA networks as an intermediate computational layer. These specific mechanisms include the stabilization of working memory, the coupling of sensory systems to motor dynamics, intentionality, and autonomous learning. I further demonstrate how all these elements may be integrated into a unified architecture to generate behavior and autonomous learning.
机译:动态场论(DFT)是用于建立体现认知的模型的已建立框架。在DFT中,基本的认知功能(例如记忆形成,基础表示的形成,注意过程,决策,适应和学习)来自神经元动力学。该框架的基本计算元素是动态神经场(DNF)。在动力学时间尺度的约束下,DNF在计算上等效于软赢家通吃(WTA)网络,该网络被认为是神经元处理中的基本计算单位之一。最近,已经显示了如何在神经形态硬件(例如模拟超大规模集成(VLSI)设备)中实现WTA网络。本文利用DFT和软WTA网络之间的关系来系统地修改和集成已建立的DFT机制,这些机制先前已散布在不同的体系结构中。此外,我还确定了DFT的一些新颖的计算和体系结构机制,这些机制可以在使用WTA网络作为中间计算层的神经形态VLSI设备中实现。这些特定的机制包括工作记忆的稳定,感觉系统与运动动力学的耦合,意图性和自主学习。我进一步演示了如何将所有这些元素集成到一个统一的体系结构中,以产生行为和自主学习。

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