Bibliographic Details
| Title: |
Competition Between Synaptic Depression and Facilitation in Attractor Neural Networks. |
| Authors: |
J. J. Torres1 jtorres@onsager.ugr.es, J. M. Cortes1,2 jesus.m.cortes@gmail.com, J. Marro1 jmarro@ugr.es, H. J. Kappen3 B.Kappen@science.ru.nl |
| Source: |
Neural Computation. Oct2007, Vol. 19 Issue 10, p2739-2755. 17p. 7 Graphs. |
| Subject Terms: |
*COGNITIVE neuroscience, *NEURAL circuitry, *BIOLOGICAL neural networks, *MONTE Carlo method, *MEMORY, *NEUROBIOLOGY, *ARTIFICIAL intelligence, *ADAPTABILITY (Personality) |
| Abstract: |
We study the effect of competition between short-term synaptic depression and facilitation on the dynamic properties of attractor neural networks, using Monte Carlo simulation and a mean-field analysis. Depending on the balance of depression, facilitation, and the underlying noise, the network displays different behaviors, including associative memory and switching of activity between different attractors. We conclude that synaptic facilitation enhances the attractor instability in a way that (1) intensifies the system adaptability to external stimuli, which is in agreement with experiments, and (2) favors the retrieval of information with less error during short time intervals. [ABSTRACT FROM AUTHOR] |
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| Database: |
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