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Modeling of inhibition/excitation firing in olfactory bulb through spiking neurons

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Abstract

Spiking neural systems are based on biologically inspired neural models of computation since they take into account the precise timing of spike events and therefore are suitable to analyze dynamical aspects of neuronal signal transmission. These systems gained increasing interest because they are more sophisticated than simple neuron models found in artificial neural systems; they are closer to biophysical models of neurons, synapses, and related elements and their synchronized firing of neuronal assemblies could serve the brain as a code for feature binding and pattern segmentation. The simulations are designed to exemplify certain properties of the olfactory bulb (OB) dynamics and are based on an extension of the integrate-and-fire (IF) neuron, and the idea of locally coupled excitation and inhibition cells. We introduce the background theory to making an appropriate choice of model parameters. The following two forms of connectivity offering certain computational and analytical advantages, either through symmetry or statistical properties in the study of OB dynamics have been used:

  • all-to-all coupling,

  • receptive field style coupling.

Our simulations showed that the inter-neuron transmission delay controls the size of spatial variations of the input and also smoothes the network response. Our IF extended model proves to be a useful basis from which we can study more sophisticated features as complex pattern formation, and global stability and chaos of OB dynamics.

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Authors and Affiliations

  1. Department of Computer Science, University of Massachusetts Dartmouth, 285 Old Westport Rd, North Dartmouth, MA, 02747, USA

    Iren Valova, Frank Troescher & Oxana Lapteva

  2. Department of Computer Science, CSI/City University of New York, 2800 Victory Blvd, Staten Island, NY, 10314, USA

    Iren Valova & Natacha Gueorguieva

Authors
  1. Iren Valova
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  2. Natacha Gueorguieva
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  3. Frank Troescher
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  4. Oxana Lapteva
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Correspondence to Iren Valova.

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Valova, I., Gueorguieva, N., Troescher, F. et al. Modeling of inhibition/excitation firing in olfactory bulb through spiking neurons. Neural Comput & Applic 16, 355–372 (2007). https://doi.org/10.1007/s00521-006-0060-z

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  • DOI: https://doi.org/10.1007/s00521-006-0060-z

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