Abstract：During the process of signal transducing in an olfactory nerve system, the change of synchronous oscillatory kinematic pattern of mitral cells(MCs) is very important for coding and decoding in the olfactory bulb.To study how the granule cell(GC) and periglomerular cell(PGC) have influenced the synchronous oscillatory kinematic pattern of mitral cells，a dynamical model for these three kinds of cells including mitral cells, granular cells and periglomerular cells was set up.Through numerical simulations, the firing patterns of the three kinds of cells were got. Then a network model for the olfactory bulb was set up for comparing the difference between the firing patterns of different cells and the difference between the conditions of with and without network. In addition, the synchronization kinematics of MCs was analyzed, and it is found that the inhibitory effect of GC and PGC contributes to the synchronization kinematics of MCs.
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