Coexistence of Cell Assemblies and STDP
We implement a model of leaky-integrate-and fire neurons with conductance-based synapses. Neurons are structurally coupled in terms of an ideal cell assembly. Synaptic changes occur through parameterized spike timing-dependent plasticity rules which allows us to investigate the question whether cell assemblies can survive or even be strengthed by such common learning rules. It turns out that for different delays there are parameter settings which support cell assembly structures and others which do not.
KeywordsCell Assembly Synaptic Weight Synaptic Strength Spike Generation Hebbian Learning
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- 1.Hebb, D.O.: The Organization of Behavior. Wiley, Chichester (1949)Google Scholar
- 4.Markert, H.: Neural Associative Memories for Language Understanding and Robot Control. PhD thesis, Ulm University (2008)Google Scholar
- 6.Bi, Q.Q., Poo, M.M.: Synaptic modification in cultured hippocampal neurons: Dependence on spike timing, synaptic strength, and postsynaptic cell type. J. Neurosc. 18, 10464–10474 (1998)Google Scholar
- 8.Rossum, M.C.W., Bi, Q.Q., Turrigiano, G.G.: Stable Hebbian learning from spike timing-dependent plasticity. J. Neurosc. 20, 8812–8821 (2000)Google Scholar