Self-sustained firing activities of the cortical network with plastic rules in weak AC electrical fields

doi:10.1088/1674-1056/21/7/078702

中国物理B ›› 2012, Vol. 21 ›› Issue (7): 78702-078702.doi: 10.1088/1674-1056/21/7/078702

• INTERDISCIPLINARY PHYSICS AND RELATED AREAS OF SCIENCE AND TECHNOLOGY • 上一篇下一篇

Self-sustained firing activities of the cortical network with plastic rules in weak AC electrical fields

秦迎梅, 王江, 门聪, 赵佳, 魏熙乐, 邓斌

School of Electrical Engineering and Automation, Tianjin University, Tianjin 300222, China

收稿日期:2012-01-11 修回日期:2012-02-09 出版日期:2012-06-01 发布日期:2012-06-01
基金资助:
Project supported by the National Natural Science Foundation of China (Grant Nos. 61072012, 60901035, 50907044, and 61172009).

Self-sustained firing activities of the cortical network with plastic rules in weak AC electrical fields

Qin Ying-Mei(秦迎梅), Wang Jiang(王江)^†, Men Cong(门聪), Zhao Jia(赵佳), Wei Xi-Le(魏熙乐), and Deng Bin(邓斌)

School of Electrical Engineering and Automation, Tianjin University, Tianjin 300222, China

Received:2012-01-11 Revised:2012-02-09 Online:2012-06-01 Published:2012-06-01
Contact: Wang Jiang E-mail:jiangwang@tju.edu.cn
Supported by:
Project supported by the National Natural Science Foundation of China (Grant Nos. 61072012, 60901035, 50907044, and 61172009).

摘要/Abstract

摘要： 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.

关键词: spike-timing-dependent plasticity (STDP), weak electrical field, rhythmic activity

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.

Key words: spike-timing-dependent plasticity (STDP), weak electrical field, rhythmic activity

中图分类号: (Neuroscience)

87.19.L-

05.45.-a (Nonlinear dynamics and chaos)

秦迎梅, 王江, 门聪, 赵佳, 魏熙乐, 邓斌. Self-sustained firing activities of the cortical network with plastic rules in weak AC electrical fields[J]. 中国物理B, 2012, 21(7): 78702-078702.

Qin Ying-Mei(秦迎梅), Wang Jiang(王江), Men Cong(门聪), Zhao Jia(赵佳), Wei Xi-Le(魏熙乐), and Deng Bin(邓斌) . Self-sustained firing activities of the cortical network with plastic rules in weak AC electrical fields[J]. Chin. Phys. B, 2012, 21(7): 78702-078702.

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Self-sustained firing activities of the cortical network with plastic rules in weak AC electrical fields

Self-sustained firing activities of the cortical network with plastic rules in weak AC electrical fields

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