The Emergence of Memory: Categorisation Far from Equilibrium

Andrew Wuensche

Working Papers from Santa Fe Institute

Abstract: The brain is a vastly complex dynamical system. Cognitive functions such as memory, learning, volition, and consciousness seem to emerge as high level properties from the activity of billions of neurons sparsely connected into complex networks. What is it about networks that allows such emergence to happen?

I will argue that the basic level of emergence is a network's ability to categorise its space of possible patterns of distributed activation. State space is not just categorised by attractors. Categorisation also occurs far from equilibrium, within the long transients leading to attractor cycles, giving a role to chaotic dynamics. A network self-organises its state-space into a {\it basin of attraction field}, a space-time abstraction representing the network's latent distributed memory. When networks link up with other networks, the system is able to use memory in individual fields to provide the components for the emergence of higher level cognitive states. This paper examines the idea of basins of attraction in the context of a simple yet powerful neural model --- random Boolean networks.

Date: 1995-03
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Persistent link: https://EconPapers.repec.org/RePEc:wop:safiwp:95-03-035

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