Journal
NEURAL PROCESSING LETTERS
Volume 16, Issue 3, Pages 235-242Publisher
KLUWER ACADEMIC PUBL
DOI: 10.1023/A:1021786719535
Keywords
aperiodic signal; coincidence detection; conductance stimulus; cross-correlation; Hodgkin-Huxley equations; leaky integrate-and-fire model; reverse correlation analysis; stochastic resonance
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We demonstrate that a realistic neuron model expressed by the Hodgkin-Huxley equations shows a stochastic resonance phenomenon, by computing cross-correlation between input and output spike timing when the neuron receives both aperiodic signal input of spike packets and background random noise of both excitatory and inhibitory spikes. We consider that such a signal detection is realized because the neuron with active properties is sensitive to fluctuation caused by a sharp increase just after a sudden dip of excitatory noise spikes and a gradual decrease of inhibitory noise spikes. We also show that the model generates highly irregular firing of output spikes on the basis of the modulation detecting property.
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