English
 
User Manual Privacy Policy Disclaimer Contact us
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT

Released

Journal Article

Spike Onset Dynamics and Response Speed in Neuronal Populations

MPS-Authors
/persons/resource/persons173705

Wei,  Wei
Research Group Theoretical Neurophysics, Max Planck Institute for Dynamics and Self-Organization, Max Planck Society;

/persons/resource/persons173710

Wolf,  Fred
Research Group Theoretical Neurophysics, Max Planck Institute for Dynamics and Self-Organization, Max Planck Society;
Department of Nonlinear Dynamics, Max Planck Institute for Dynamics and Self-Organization, Max Planck Society;

External Ressource
No external resources are shared
Fulltext (public)
There are no public fulltexts stored in PuRe
Supplementary Material (public)
There is no public supplementary material available
Citation

Wei, W., & Wolf, F. (2011). Spike Onset Dynamics and Response Speed in Neuronal Populations. Physical Review Letters, 106: 088102. doi:10.1103/PhysRevLett.106.088102.


Cite as: http://hdl.handle.net/11858/00-001M-0000-0029-11DD-6
Abstract
Recent studies of cortical neurons driven by fluctuating currents revealed cutoff frequencies for action potential encoding of several hundred Hz. Theoretical studies of biophysical neuron models have predicted a much lower cutoff frequency of the order of average firing rate or the inverse membrane time constant. The biophysical origin of the observed high cutoff frequencies is thus not well understood. Here we introduce a neuron model with dynamical action potential generation, in which the linear response can be analytically calculated for uncorrelated synaptic noise.We find that the cutoff frequencies increase to very large values when the time scale of action potential initiation becomes short. Here we introduce a neuron model with dynamical action potential generation, in which the linear response can be analytically calculated for uncorrelated synaptic noise.We find that the cutoff frequencies increase to very large values when the time scale of action potential initiation becomes short.