A comparative study of different integrate-and-fire neurons: spontaneous activity, dynamical response, and stimulus-induced correlation

Details A comparative study of different integrate-and-fire neurons: spontaneous activity, dynamical response, and stimulus-induced correlation A comparative study of different integrate-and-fire neurons: spontaneous activity, dynamical response, and stimulus-induced correlation

2009-12-11

arxiv.org/abs/0912.2336v1

Phys. Rev. E 80, 031909 (2009)

Biology

Quantitative Biology

Neurons and Cognition

12 pages

Scientific paper

Stochastic integrate-and-fire (IF) neuron models have found widespread applications in computational neuroscience. Here we present results on the white-noise-driven perfect, leaky, and quadratic IF models, focusing on the spectral statistics (power spectra, cross spectra, and coherence functions) in different dynamical regimes (noise-induced and tonic firing regimes with low or moderate noise). We make the models comparable by tuning parameters such that the mean value and the coefficient of variation of the interspike interval match for all of them. We find that, under these conditions, the power spectrum under white-noise stimulation is often very similar while the response characteristics, described by the cross spectrum between a fraction of the input noise and the output spike train, can differ drastically. We also investigate how the spike trains of two neurons of the same kind (e.g. two leaky IF neurons) correlate if they share a common noise input. We show that, depending on the dynamical regime, either two quadratic IF models or two leaky IFs are more strongly correlated. Our results suggest that, when choosing among simple IF models for network simulations, the details of the model have a strong effect on correlation and regularity of the output.

Affiliated with

Also associated with

No associations

Rating

A comparative study of different integrate-and-fire neurons: spontaneous activity, dynamical response, and stimulus-induced correlation does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with A comparative study of different integrate-and-fire neurons: spontaneous activity, dynamical response, and stimulus-induced correlation, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A comparative study of different integrate-and-fire neurons: spontaneous activity, dynamical response, and stimulus-induced correlation will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-532658