Self-sustained firing activities of the cortical network with plastic rules in weak AC electrical fields |
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| Authors: | Qin Ying-Mei Wang Jiang Men Cong Zhao Jia Wei Xi-Le Deng Bin |
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| Affiliation: | School of Electrical Engineering and Automation, Tianjin University, Tianjin 300222, China |
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| Abstract: | Both external and endogenous electrical fields widely exist in the environment of cortical neurons. The effects of weak alternating current (AC) field on a neural network model with synaptic plasticity are studied. It is found that self-sustained rhythmic firing patterns, which are closely correlated with the cognitive functions, are significantly modified due to the self-organizing of the network in the weak AC field. The activities of the neural networks are affected by the synaptic connection strength, the external stimuli, and so on. In the presence of learning rules, the synaptic connections can be modulated by the external stimuli, which will further enhance the sensitivity of the network to the external signal. The properties of the external AC stimuli can serve as control parameters in modulating the evolution of the neural network. |
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| Keywords: | spike-timing-dependent plasticity (STDP) weak electrical field rhythmic activity |
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