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| Interaction between different cells in olfactory bulb and synchronous kinematic analysis |
| Xu Ailei1 , Du Yin2 , Wang Rubin2 |
| 1 School of Information Science and Engineering, East China University of Science and Technology, Shanghai 200237, China;2 School of Science, East China University of Science and Technology, Shanghai 200237, China; |
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Abstract Olfactory bulb plays an important part in signal encoding of olfactory system. The interaction between excitatory mitral cell and inhibitory granule cell 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 the dynamical model of mitral cell and granular cell in the olfactory bulb. The simulation figures show the firing patterns of single mitral cell and single granular cell, as well as these two kinds of cells having a coupling relationship. The results indicate that Mitral cells have an excitatory effect on granular cells, and granular cells have an inhibitory effect on mitral cells. 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 network of granular cells on the synchronization of two mitral cells. Different types of firing synchronization are diagnosed by means of ISI-distance method. The numerical analysis indicates that grid-like neuronal network can make mitral cells synchronize better.
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Received: 12 July 2011
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2013, Vol. 32 
