Spectra and waiting-time densities in firing resonant and nonresonant neurons

Details Spectra and waiting-time densities in firing resonant and nonresonant neurons Spectra and waiting-time densities in firing resonant and nonresonant neurons

2004-01-08

arxiv.org/abs/q-bio/0401013v2

Phys. Rev. E 70, 031916 (2004)

Biology

Quantitative Biology

Neurons and Cognition

7 pages, 8 figures

Scientific paper

10.1103/PhysRevE.70.031916

The response of a neural cell to an external stimulus can follow one of the two patterns: Nonresonant neurons monotonously relax to the resting state after excitation while resonant ones show subthreshold oscillations. We investigate how do these subthreshold properties of neurons affect their suprathreshold response. Vice versa we ask: Can we distinguish between both types of neuronal dynamics using suprathreshold spike trains? The dynamics of neurons is given by stochastic FitzHugh-Nagumo and Morris-Lecar models with either having a focus or a node as the stable fixpoint. We determine numerically the spectral power density as well as the interspike interval density in response to a random (noise-like) signals. We show that the information about the type of dynamics obtained from power spectra is of limited validity. In contrast, the interspike interval density gives a very sensitive instrument for the diagnostics of whether the dynamics has resonant or nonresonant properties. For the latter value we formulate a fit formula and use it to reconstruct theoretically the spectral power density, which coincides with the numerically obtained spectra. We underline that the renewal theory is applicable to analysis of suprathreshold responses even of resonant neurons.

Affiliated with

Also associated with

No associations

Rating

Spectra and waiting-time densities in firing resonant and nonresonant neurons 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 Spectra and waiting-time densities in firing resonant and nonresonant neurons, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Spectra and waiting-time densities in firing resonant and nonresonant neurons will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-66763