[Analysis of disturbances in the three-layer model of associative memory: realization of path beating principle upon gradual changes in neuronal activity and transmission factors].
A model is considered in which the activity values, the weights of connections, and the transmission factors of neurons are positive, the connections are chosen by chance and are symmetric regarding the layer of associative neurons. Formulas were obtained for the mathematical expectation and the dispersion of activity values at the model outputs in the initial state and during the associative readout after recording the associations of input pairs and the association of the activity vector with the input-mark with two methods of recording. It was shown that (unlike quasiholographic models) in the beating model there arise hampering additions to the mathematical expectation, some of them being difficult to remove. Dispersive disturbances during vector recording considerably exceed the disturbances arising in quasiholographic models.
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Pavlov Institute of Physiology, Russian Academy of Sciences, nab. Makarova 6, St. Petersburg, 199034 Russia.
D000465:Algorithms; D001244:Association; D008568:Memory; D008959:Models, Neurological; D009415:Nerve Net; D009473:Neuronal Plasticity