[1]师黎,黎晓亮,王治忠..大鼠初级视皮层局部场电位γ振荡特性研究[J].郑州大学学报(工学版),2013,34(03):1-5.[doi:10.3969/j.issn.1671-6833.2013.03.001]
　SHILi,LI Xiao·liang,WANG Zhi-zhong.The Feature Selective Properties of the Gamma-oscillation of the Local Field Potentials in Rat’S Primary Visual Cortex[J].Journal of Zhengzhou University (Engineering Science),2013,34(03):1-5.[doi:10.3969/j.issn.1671-6833.2013.03.001]
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大鼠初级视皮层局部场电位γ振荡特性研究()
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《郑州大学学报(工学版)》[ISSN:1671-6833/CN:41-1339/T]

卷:
34卷
期数:
2013年03期
页码:
1-5
栏目:
出版日期:
2013-05-31

文章信息/Info

Title:
The Feature Selective Properties of the Gamma-oscillation of the Local Field Potentials in Rat’S Primary Visual Cortex
作者:
师黎; 黎晓亮; 王治忠.
郑州大学电气工程学院,河南郑州,450001, 郑州大学电气工程学院,河南郑州,450001, 郑州大学电气工程学院,河南郑州,450001
Author(s):
SHILi; LI Xiao·liang; WANG Zhi-zhong
School of Electrical Engineering，Zhengzhou University，Zhengzhou450001，China)
关键词:
初级视皮层;  局部场电位;  拓扑特征;  互信息;  γ振荡
Keywords:
primary visual cortex; local field potential; topological characteristic; mutual informationgamma oscillation
分类号:
TN911.7；R318.04
DOI:
10.3969/j.issn.1671-6833.2013.03.001
文献标志码:
A
摘要:
提出了确定γ频带范围的方法,并研究了不同拓扑结构图形刺激下γ振荡响应的特征选择特性.首先,采用小波变换和功率谱相结合的方法确定了大鼠初级视皮层局部场电位γ频带的准确范围；然后,计算了不同拓扑结构简单图形刺激下其发生γ振荡的潜伏期和γ频带的功率与不同刺激序列之间的互信息曲线,提取互信息曲线的平均值、最大值以及最大值处的频率等3个特征；最后,采用单因素方差分析对这些特征进行统计分析,结果表明,麻醉状态下大鼠初级视皮层局部场电位在视觉刺激下存在显著的γ振荡现象γ振荡对简单图形刺激的拓扑特征具有显著的选择特性.
Abstract:
In this paper，a method waspresented to determine the bandof gamma oscillation，and the eharac— teristics of the gamma oscillation response to simple graphics with different topologies wasexplored．First，the method combining wavelets transform and power spectrum wasadoptedto determine the accurategamma band range of the localfield potentials in rat’S primary visual cortex．Secondly，the latencyperiods ofgamma oscillation for simple graphics stimuluswith different topologies were calculated andthe curves of mutual informa．tionbetween the stimulus sequences andpower spectrums in gamma bandwere estimated．The means，maxi．mumvalues and the frequencies at themaximumvalues ofthe curveswereextractedas the feature parameters．Finally，these characteristics were analysed statistically with one—way analysis of variance．The experiment re．suits showthatundervisual stimulations the gamma-bandoscillations exist obviously in the primary visual cot．tex(V1)ofanesthetized rat．The gamma oscillations were significantly selective to the topological features of simple graphic stimulations．

参考文献/References:

[1]XING Da-jun，YEN Chun-I. Spatial spread of the lo-cal field potential and its laminar variation in visualcortex[ J ]. The Journal of Neuroscience，2009，29( 37) :11540 - 11549.

[2] BUZSAKI C. Theta oscillations in the hippocampus[J]. Neuron， 2002,33 :325- 340.

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更新日期/Last Update: 1900-01-01