Artículo
Robust timing and motor patterns by taming chaos in recurrent neural networks
Fecha de publicación:
07/2013
Editorial:
Nature Publishing Group
Revista:
Nature Neuroscience.
ISSN:
1097-6256
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
The brain's ability to tell time and produce complex spatiotemporal motor patterns is critical for anticipating the next ring of a telephone or playing a musical instrument. One class of models proposes that these abilities emerge from dynamically changing patterns of neural activity generated in recurrent neural networks. However, the relevant dynamic regimes of recurrent networks are highly sensitive to noise; that is, chaotic. We developed a firing rate model that tells time on the order of seconds and generates complex spatiotemporal patterns in the presence of high levels of noise. This is achieved through the tuning of the recurrent connections. The network operates in a dynamic regime that exhibits coexisting chaotic and locally stable trajectories. These stable patterns function as 'dynamic attractors' and provide a feature that is characteristic of biological systems: the ability to 'return' to the pattern being generated in the face of perturbations.
Palabras clave:
NEUROSCIENCE
,
TIME PROCESSING
,
NEURAL NETWORKS
,
NONLINEAR DYNAMICS
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Articulos(SEDE CENTRAL)
Articulos de SEDE CENTRAL
Articulos de SEDE CENTRAL
Citación
Laje, Rodrigo; Buonomano, Dean V.; Robust timing and motor patterns by taming chaos in recurrent neural networks; Nature Publishing Group; Nature Neuroscience.; 16; 7; 7-2013; 925-933
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