Firing Rate of the Noisy Quadratic Integrate-and-Fire Neuron
نویسندگان
چکیده
منابع مشابه
Firing Rate of the Noisy Quadratic Integrate-and-Fire Neuron
We calculate the firing rate of the quadratic integrate-and-fire neuron in response to a colored noise input current. Such an input current is a good approximation to the noise due to the random bombardment of spikes, with the correlation time of the noise corresponding to the decay time of the synapses. The key parameter that determines the firing rate is the ratio of the correlation time of t...
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We derive analytical formulas for the firing rate of integrate-and-fire neurons endowed with realistic synaptic dynamics. In particular, we include the possibility of multiple synaptic inputs as well as the effect of an absolute refractory period into the description. The latter affects the firing rate through its interaction with the synaptic dynamics.
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Neurons that exhibit a peak at finite frequency in their membrane potential response to oscillatory inputs are widespread in the nervous system. However, the influence of this subthreshold resonance on spiking properties has not yet been thoroughly analyzed. To this end, generalized integrate-and-fire models are introduced that reproduce at the linear level the subthreshold behavior of any give...
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The effect of time correlations in the afferent current on the firing rate of a generalized integrate-and-fire neuron model is studied. When the correlation time τc is small enough the firing rate can be calculated analytically for small values of the correlation amplitude α. It is shown that the rate decreases as √ τc from its value at τc = 0. This limit behavior is universal for integrate-and...
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ژورنال
عنوان ژورنال: Neural Computation
سال: 2003
ISSN: 0899-7667,1530-888X
DOI: 10.1162/089976603322362365