منابع مشابه
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. T...
متن کاملSynapses as dynamic memory buffers
This article throws new light on the possible role of synapses in information transmission through theoretical analysis and computer simulations. We show that the internal dynamic state of a synapse may serve as a transient memory buffer that stores information about the most recent segment of the spike train that was previously sent to this synapse. This information is transmitted to the posts...
متن کاملStability analysis of associative memory network composed of stochastic neurons and dynamic synapses
We investigate the dynamical properties of an associative memory network consisting of stochastic neurons and dynamic synapses that show short-term depression and facilitation. In the stochastic neuron model used in this study, the efficacy of the synaptic transmission changes according to the short-term depression or facilitation mechanism. We derive a macroscopic mean field model that capture...
متن کاملSynapses as associative memory elements in the hippocampal formation.
This report analyzes long term potentiation (LTP) and associative interactions between synapses of the ipsilateral and crossed entorhinal cortical (EC) pathways to the dentate gyrus (DG). In the anesthetized rat, conditioning stimulation to one EC-DG pathway reliably elicits LTP at the ipsilateral synapses, while the synapses of the collateral, crossed pathway to the contralateral DG do not exh...
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When we analyse a particular stimulus, a number of neurons in thebrain are specifically activated. The recognition of a visual pattern can be interpreted as the activation of a particular group of such neurons, in a particular way. Some recent results (Freeman, 1990) have shown that a group of neurons may respond to a stimulus with a coupled activity. This notion of coupled neural activity can ...
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ژورنال
عنوان ژورنال: Neural Computation
سال: 2002
ISSN: 0899-7667,1530-888X
DOI: 10.1162/089976602760805331