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Discrete Dynamics in Nature and Society
Volume 2014, Article ID 808792, 9 pages
Research Article

Interaction between Different Cells in Olfactory Bulb and Synchronous Kinematic Analysis

Ailei Xu,1,2 Ying Du,1,2 Rubin Wang,1,2 and Jinde Cao3,4

1School of Information Science and Engineering, East China University of Science and Technology, Shanghai 200237, China
2School of Science, East China University of Science and Technology, Shanghai 200237, China
3Department of Mathematics, Southeast University, Nanjing 210096, China
4Department of Mathematics, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia

Received 12 February 2014; Accepted 9 March 2014; Published 14 May 2014

Academic Editor: Guanghui Wen

Copyright © 2014 Ailei Xu et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Olfactory bulb plays an important part in signal encoding of olfactory system. The interaction between excitatory mitral cell (MC) and inhibitory granule cell (GC) is particularly crucial. In this paper, the current situation of synchronous oscillation in the network of olfactory system is firstly introduced. Then we set up a dynamical model of MC and GC in the olfactory bulb. The simulation shows the firing patterns of single MC and single GC, as well as these two kinds of cells having a coupling relationship. The results indicate that MCs have an excitatory effect on GCs, and GCs have an inhibitory effect on MCs. The firing pattern varies with different synaptic strength. In addition, we set up simple olfactory network models, discussing the influence of ring-like and grid-like neuronal networks of GCs on the synchronization of two MCs. Different types of firing synchronization are quantified by means of ISI-distance method. The numerical analysis indicates that grid-like neuronal network can make MCs synchronize better.