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A working memory mo...
A working memory model based on fast Hebbian learning
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- Sandberg, A. (författare)
- Dept. of Numer. Anal. and Comp. Sci., Royal Institute of Technology, 100 44 Stockholm, Sweden
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- Tegnér, Jesper (författare)
- Linköpings universitet,Karolinska Institutet,Tekniska högskolan,Biologiska Beräkningar
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- Lansner, Anders (författare)
- KTH,Numerisk analys och datalogi, NADA,Dept. of Numer. Anal. and Comp. Sci., Royal Institute of Technology, 100 44 Stockholm, Sweden
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Karolinska Institutet Dept of Numer. Anal. and Comp. Sci., Royal Institute of Technology, 100 44 Stockholm, Sweden (creator_code:org_t)
- 2003
- 2003
- Engelska.
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Ingår i: Network. - 0954-898X .- 1361-6536. ; 14:4, s. 789-802
- Relaterad länk:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- Recent models of the oculomotor delayed response task have been based on the assumption that working memory is stored as a persistent activity state (a 'bump' state). The delay activity is maintained by a finely tuned synaptic weight matrix producing a line attractor. Here we present an alternative hypothesis, that fast Hebbian synaptic plasticity is the mechanism underlying working memory. A computational model demonstrates a working memory function that is more resistant to distractors and network inhomogeneity compared to previous models, and that is also capable of storing multiple memories.
Nyckelord
- long-term potentiation
- prefrontal cortex
- associative memory
- attractor network
- recurrent network
- spiking neurons
- visual-cortex
- dynamics
- mechanisms
- synapses
- TECHNOLOGY
Publikations- och innehållstyp
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- art (ämneskategori)
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