Bulletin of Mathematical Biology

, Volume 51, Issue 2, pp 195-205

First online:

Context-dependent associations in linear distributed memories

  • Eduardo MizrajiAffiliated withSección Biofísica, Facultad de Humanidades y CienciasDepartmento de Biofísica, Facultad de Medicina

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In this article we present a method that allows conditioning of the response of a linear distributed memory to a variable context. This method requires a system of two neural networks. The first net constructs the Kronecker product between the vector input and the vector context, and the second net supports a linear associative memory. This system is easily adaptable for different goals. We analyse here its capacity for the conditional extraction of features from a complex perceptual input, its capacity to perform quasi-logical operations (for instance, of the kind of “exclusive-or”), and its capacity to structurate a memory for temporal sequences which access is conditioned by the context. Finally, we evaluate the potential importance of the capacity to establish arbitrary contexts, for the evolution of biological cognitive systems.