Synaptic Scaling Balances Learning in a Spiking Model of Neocortex

Autor:	Rowan, Mark, Neymotin, Samuel
Rok vydání:	2013
Předmět:	Quantitative Biology - Neurons and Cognition Computer Science - Neural and Evolutionary Computing
Zdroj:	M. Rowan and S. Neymotin. Synaptic scaling balances learning in a spiking model of neocortex. In M. Tomassini et al., eds, 11th Int. Conf. Adaptive and Natural Comp. Algorithms (ICANNGA), LNCS vol. 7824, pp. 20-29, Lausanne, 2013. Springer
Druh dokumentu:	Working Paper
Popis:	Learning in the brain requires complementary mechanisms: potentiation and activity-dependent homeostatic scaling. We introduce synaptic scaling to a biologically-realistic spiking model of neocortex which can learn changes in oscillatory rhythms using STDP, and show that scaling is necessary to balance both positive and negative changes in input from potentiation and atrophy. We discuss some of the issues that arise when considering synaptic scaling in such a model, and show that scaling regulates activity whilst allowing learning to remain unaltered. Comment: 10 pages
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/1304.2266 Zobrazit plný text záznamu View this record from Arxiv