Autapse-induced synchronization in a coupled neuronal network

作者：Ma, Jun; Song, Xinlin; Jin, Wuyin; Wang, Chuni^*

来源：Chaos Solitons & Fractals, 2015, 80: 31-38.

DOI：10.1016/j.chaos.2015.02.005

• SPIRAL WAVE
• TARGET WAVE
• TRANSITION
• CHAOS
• BIFURCATIONS
• DYNAMICS

The effect of autapse on coupled neuronal network is detected. In our studies, three identical neurons are connected with ring type and autapse connected to one neuron of the network. The autapse connected to neuron can impose time-delayed feedback in close loop on the neuron thus the dynamics of membrane potentials can be changed. Firstly, the effect of autapse driving on single neuron is confirmed that negative feedback can calm down the neuronal activity while positive feedback can excite the neuronal activity. Secondly, the collective electrical behaviors of neurons are regulated by a pacemaker, which associated with the autapse forcing. By using appropriate gain and time delay in the autapse, the neurons can reach synchronization and the membrane potentials of all neurons can oscillate with the same rhythm under mutual coupling. It indicates that autapse forcing plays an important role in changing the collective electric activities of neuronal network, and appropriate electric modes can be selected due to the switch of feedback type(positive or negative) in autapse. And the autapse-induced synchronization in network is also consistent with some biological experiments about synchronization between nonidentical neurons.

• 出版日期2015-11
• 单位兰州理工大学