Effects of exogenous noise in a silent neuron model: firing induction and em signal detection.
Neuronal intrinsic noise has already shown to play a constructive role in stimuli detection. Here, an exogenous noise, applied to the neuron model as a random membrane voltage perturbation, has been considered. Properly choosing its frequency band, such a noise is able to induce firing activity in a silent neuron and to enhance the detectability of an exogenous signal, representative of an electromagnetic stimulation, through the phenomenon known as stochastic resonance.
Paffi
A
A
La Sapienza Univ., Rome.
Liberti
M
M
Apollonio
F
F
Gianni
M
M
D'Inzeo
G
G
D000200:Action Potentials; D000818:Animals; D002462:Cell Membrane / Q000502:physiology; D004574:Electromagnetic Fields; D005110:Extracellular Space / Q000502:physiology; D008959:Models, Neurological; D009474:Neurons / Q000502:physiology*; D015398:Signal Transduction; D015222:Sodium Channels / Q000502:physiology
D015222:Sodium Channels