Self-organization of feedforward structure and entrainment in excitatory neural networks with spike-timing-dependent plasticity

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dc.creatorTakahashi, Yuko K.
dc.creatorKori, Hiroshi
dc.creatorMasuda, Naoki
dc.date2008-09-06
dc.date2009-05-20
dc.date.accessioned2026-07-07T13:16:15Z
dc.date.available2026-07-07T13:16:15Z
dc.descriptionSpike-timing dependent plasticity (STDP) is an organizing principle of biological neural networks. While synchronous firing of neurons is considered to be an important functional block in the brain, how STDP shapes neural networks possibly toward synchrony is not entirely clear. We examine relations between STDP and synchronous firing in spontaneously firing neural populations. Using coupled heterogeneous phase oscillators placed on initial networks, we show numerically that STDP prunes some synapses and promotes formation of a feedforward network. Eventually a pacemaker, which is the neuron with the fastest inherent frequency in our numerical simulations, emerges at the root of the feedforward network. In each oscillatory cycle, a packet of neural activity is propagated from the pacemaker to downstream neurons along layers of the feedforward network. This event occurs above a clear-cut threshold value of the initial synaptic weight. Below the threshold, neurons are self-organized into separate clusters each of which is a feedforward network.
dc.description11 figures, 1 table
dc.identifierhttps://arxiv.org/abs/0809.1127
dc.identifierhttp://arxiv.org/abs/0809.1127
dc.identifierPhysical Review E, 79, 051904 (2009)
dc.identifierdoi:10.1103/PhysRevE.79.051904
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/230731
dc.subjectNeurons and Cognition
dc.subjectDisordered Systems and Neural Networks
dc.titleSelf-organization of feedforward structure and entrainment in excitatory neural networks with spike-timing-dependent plasticity
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