Does noise shift or delete spikes?
© Voronenko and Lindner; licensee BioMed Central Ltd. 2013
Published: 8 July 2013
Stochastic leaky integrate-and-fire neurons are widely used to study properties of neural networks (e.g. ) as well as the spontaneous activity  and signal transmission  of single neurons. They have also been employed in studies of the 'common-noise' problem, i.e. the question of how correlated input to two cells causes output spike train correlations of these neurons .
In the cortex, input correlations seem to be weak  (in terms of the above sketch, c<<1), however, in the sensory periphery with a strong time-dependent stimulus the situation can be completely different (e.g.). The two neurons receive the same strong stimulus (often modeled as a random signal) and each neuron is subject to a small amount of intrinsic noise (1-c<<1). Without the intrinsic noise two identical neurons would fire in complete synchrony. How does the weak noise change the spikes?
This work was funded by the BMBF (FKZ: 01GQ1001A).
- Brunel N: Dynamics of sparsely connected networks of excitatory and inhibitory spiking neurons. J Comput Neurosci. 2000, 8 (3): 183-208. 10.1023/A:1008925309027.View ArticlePubMedGoogle Scholar
- Burkitt A N: A review of the integrate-and-fire neuron model: I. Homogeneous synaptic input. Biological cybernetics. 2006, 95 (1): 1-193. 10.1007/s00422-006-0068-6.View ArticlePubMedGoogle Scholar
- Burkitt AN: A review of the integrate-and-fire neuron model: II. Inhomogeneous synaptic input and network properties. Biological cybernetics. 2006, 95 (2): 97-112. 10.1007/s00422-006-0082-8.View ArticlePubMedGoogle Scholar
- De la Rocha J, Doiron B, Shea-Brown E, Josic ´ K, Reyes A: Correlation between neural spike trains increases with firing rate. Nature. 2007, 448: 802-8065. 10.1038/nature06028.View ArticlePubMedGoogle Scholar
- Zohary , Ehud , Michael N, Shadlen , William T, Newsome : Correlated neuronal discharge rate and its implications for psychophysical performance. Nature. 1994, 140-143.Google Scholar
- Alonso JM, Usrey WM, Reid RC: Precisely correlated firing in cells of the lateral geniculate nucleus. Nature. 1996, 383 (6603): 815-819. 10.1038/383815a0.View ArticlePubMedGoogle Scholar
This article is published under license to BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.