Associative memory with dynamic synapses.
We have examined a role of dynamic synapses in the stochastic Hopfield-like network behavior. Our results demonstrate an appearance of a novel phase characterized by quick transitions from one memory state to another. The network is able to retrieve memorized patterns corresponding to classical ferromagnetic states but switches between memorized patterns with an intermittent type of behavior. This phenomenon might reflect the flexibility of real neural systems and their readiness to receive and respond to novel and changing external stimuli.
Pantic
Lovorka
L
Department of Biophysics, University of Nijmegen, 6525 EZ Nijmegen, The Netherlands. lovorka@mbfys.kun.nl
Torres
Joaquín J
JJ
Kappen
Hilbert J
HJ
Gielen
Stan C A M
SC
D000818:Animals; D001244:Association; D006801:Humans; D008568:Memory / Q000502:physiology*; D008959:Models, Neurological; D009415:Nerve Net / Q000502:physiology; D013269:Stochastic Processes; D013569:Synapses / Q000502:physiology*