Attractor dynamics of spatially correlated neural activity in the limbic system.
Annu Rev Neurosci
; 35: 267-85, 2012.
Article
em En
| MEDLINE
| ID: mdl-22462545
ABSTRACT
Attractor networks are a popular computational construct used to model different brain systems. These networks allow elegant computations that are thought to represent a number of aspects of brain function. Although there is good reason to believe that the brain displays attractor dynamics, it has proven difficult to test experimentally whether any particular attractor architecture resides in any particular brain circuit. We review models and experimental evidence for three systems in the rat brain that are presumed to be components of the rat's navigational and memory system. Head-direction cells have been modeled as a ring attractor, grid cells as a plane attractor, and place cells both as a plane attractor and as a point attractor. Whereas the models have proven to be extremely useful conceptual tools, the experimental evidence in their favor, although intriguing, is still mostly circumstantial.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Encéfalo
/
Redes Neurais de Computação
/
Sistema Límbico
/
Modelos Neurológicos
Limite:
Animals
Idioma:
En
Revista:
Annu Rev Neurosci
Ano de publicação:
2012
Tipo de documento:
Article
País de afiliação:
Estados Unidos