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15 May 2006

Volume 88, Issue 20, Articles (20xxxx)

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Appl. Phys. Lett. 88, 203101 (2006); http://dx.doi.org/10.1063/1.2203932 (3 pages)

Andrea Ponzoni, Elisabetta Comini, Giorgio Sberveglieri, Jun Zhou, Shao Zhi Deng, Ning Sheng Xu, Yong Ding, and Zhong Lin Wang
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Synchronization in neuronal population with the variable coupling strength in the presence of external stimulus

Xianfa Jiao and Rubin Wang

Appl. Phys. Lett. 88, 203901 (2006); http://dx.doi.org/10.1063/1.2204575 (3 pages) | Cited 7 times

Online Publication Date: 17 May 2006

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In this letter, taking into account the variation of coupling strength, we present a dynamical model of neuronal oscillator population subject to external stimulus and noise, and introduce an average number density of coupling pairs to describe the synchronization behavior of the neuronal oscillator population. The numerical simulations indicate that external stimulus enhances the synchronized activity in neuronal population and the coupling between the neuronal oscillators. With a stronger stimulus, the synchronization in neuronal population emerges rapidly, and the duration of the synchronization is longer. The numerical simulations also show that when the combined stimuli of different modalities are performed simultaneously, there is a reciprocal or competitive interaction between the different stimulus modalities.
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87.19.L- Neuroscience
87.10.-e General theory and mathematical aspects
05.45.Xt Synchronization; coupled oscillators
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