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摘要:
Neural firing patterns are investigated by using symbolic dynamics. Bifurcation behaviour of the Hindmarsh-Rose (HR) neuronal model is simulated with the external stimuli gradually decreasing, and various firing activities with different topological structures are orderly numbered. Through constructing first-return maps of interspike intervals, all firing patterns are described and identified by symbolic expressions. On the basis of ordering rules of symbolic sequences, the corresponding relation between parameters and firing patterns is established, which will be helpful for encoding neural information. Moreover, using the operation rule of * product, generation mechanisms and intrinsic configurations of periodic patterns can be distinguished in detail. Results show that the symbolic approach is a powerful tool to study neural firing activities. In particular, such a coarse-grained way can be generalized in neural electrophysiological experiments to extract much valuable information from complicated experimental data.
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篇名 Dynamics analysis on neural firing patterns by symbolic approach
来源期刊 中国物理(英文版) 学科
关键词 neural firing patterns interspike interval first-return map symbolic sequence
年,卷(期) 2007,(8) 所属期刊栏目
研究方向 页码范围 2479-2485
页数 7页 分类号
字数 语种 英文
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neural firing patterns
interspike interval
first-return map
symbolic sequence
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中国物理B(英文版)
月刊
1674-1056
11-5639/O4
北京市中关村中国科学院物理研究所内
eng
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17050
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0
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27962
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