Statistical physics approach to dendritic computation: The excitable-wave mean-field approximation
| Contribuinte(s) |
UNIVERSIDADE DE SÃO PAULO |
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| Data(s) |
04/11/2013
04/11/2013
2012
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| Resumo |
We analytically study the input-output properties of a neuron whose active dendritic tree, modeled as a Cayley tree of excitable elements, is subjected to Poisson stimulus. Both single-site and two-site mean-field approximations incorrectly predict a nonequilibrium phase transition which is not allowed in the model. We propose an excitable-wave mean-field approximation which shows good agreement with previously published simulation results [Gollo et al., PLoS Comput. Biol. 5, e1000402 (2009)] and accounts for finite-size effects. We also discuss the relevance of our results to experiments in neuroscience, emphasizing the role of active dendrites in the enhancement of dynamic range and in gain control modulation. CNPq CNPq FACEPE FACEPE CAPES CAPES PRONEX PRONEX PRONEM PRONEM INCeMaq INCeMaq MEC (Spain) MEC (Spain) FEDER FEDER [FIS2007-60327 (FISICOS)] |
| Identificador |
PHYSICAL REVIEW E, COLLEGE PK, v. 85, n. 1, supl. 1, Part 1, pp. 10157-10165, 40909, 2012 1539-3755 http://www.producao.usp.br/handle/BDPI/37913 10.1103/PhysRevE.85.011911 |
| Idioma(s) |
eng |
| Publicador |
AMER PHYSICAL SOC COLLEGE PK |
| Relação |
PHYSICAL REVIEW E |
| Direitos |
openAccess Copyright AMER PHYSICAL SOC |
| Palavras-Chave | #CAT VISUAL-CORTEX #GAIN-CONTROL #SHUNTING INHIBITION #CONTRAST INVARIANCE #SYNAPTIC DEPRESSION #ACTIVE DENDRITES #CONTACT PROCESS #PYRAMIDAL CELL #CORTICAL AREAS #NEURONAL GAIN #PHYSICS, FLUIDS & PLASMAS #PHYSICS, MATHEMATICAL |
| Tipo |
article original article publishedVersion |
