This study investigates the possibility of using exogenous noise to restore the processing performances of neuronal systems where the endogenous noise is reduced due to the ageing or to degenerative diseases. This idea is based on the assumption, supported by theoretical studies, that the endogenous noise has a positive role in neuronal signal detection and that its reduction impairs the system function. Results, obtained on a two-layers feedforward network, show the onset of the Stochastic Resonance (SR) behavior, as long as the exogenous noise is properly tailored and filtered. The amount of noise to be furnished from the outside to optimize the system performance depends on the residual level of endogenous noise, indicating that both kinds of noise cooperate to the signal detection. These results support potentially new bioengineering applications where exogenous noise is furnished to enhance signal detectability.

Stochastic resonance induced by exogenous noise in a model of a neuronal network / Paffi, Alessandra; Apollonio, Francesca; D'Inzeo, Guglielmo; Liberti, Micaela. - In: NETWORK. - ISSN 0954-898X. - STAMPA. - 24:3(2013), pp. 99-113. [10.3109/0954898x.2013.793849]

Stochastic resonance induced by exogenous noise in a model of a neuronal network

PAFFI, ALESSANDRA;APOLLONIO, Francesca;D'INZEO, Guglielmo;LIBERTI, Micaela
2013

Abstract

This study investigates the possibility of using exogenous noise to restore the processing performances of neuronal systems where the endogenous noise is reduced due to the ageing or to degenerative diseases. This idea is based on the assumption, supported by theoretical studies, that the endogenous noise has a positive role in neuronal signal detection and that its reduction impairs the system function. Results, obtained on a two-layers feedforward network, show the onset of the Stochastic Resonance (SR) behavior, as long as the exogenous noise is properly tailored and filtered. The amount of noise to be furnished from the outside to optimize the system performance depends on the residual level of endogenous noise, indicating that both kinds of noise cooperate to the signal detection. These results support potentially new bioengineering applications where exogenous noise is furnished to enhance signal detectability.
2013
network models; single neuron computation
01 Pubblicazione su rivista::01a Articolo in rivista
Stochastic resonance induced by exogenous noise in a model of a neuronal network / Paffi, Alessandra; Apollonio, Francesca; D'Inzeo, Guglielmo; Liberti, Micaela. - In: NETWORK. - ISSN 0954-898X. - STAMPA. - 24:3(2013), pp. 99-113. [10.3109/0954898x.2013.793849]
File allegati a questo prodotto
Non ci sono file associati a questo prodotto.

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/530103
 Attenzione

Attenzione! I dati visualizzati non sono stati sottoposti a validazione da parte dell'ateneo

Citazioni
  • ???jsp.display-item.citation.pmc??? 5
  • Scopus 17
  • ???jsp.display-item.citation.isi??? 14
social impact