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电感觉神经元中的振荡活动随着随机输入刺激的空间相关性而增加。

Oscillatory activity in electrosensory neurons increases with the spatial correlation of the stochastic input stimulus.

作者信息

Doiron Brent, Lindner Benjamin, Longtin André, Maler Leonard, Bastian Joseph

机构信息

Physics Department, University of Ottawa, 150 Louis Pasteur, Ottawa, Ontario, Canada.

出版信息

Phys Rev Lett. 2004 Jul 23;93(4):048101. doi: 10.1103/PhysRevLett.93.048101. Epub 2004 Jul 20.

DOI:10.1103/PhysRevLett.93.048101
PMID:15323795
Abstract

We present results from a novel experimental paradigm to investigate the influence of spatial correlations of stimuli on electrosensory neural network dynamics. Further, a new theoretical analysis for the dynamics of a model network of stochastic leaky integrate-and-fire neurons with delayed feedback is proposed. Experiment and theory for this system both establish that spatial correlations induce a network oscillation, the strength of which is proportional to the degree of stimulus correlation at constant total stimulus power.

摘要

我们展示了一种新型实验范式的结果，以研究刺激的空间相关性对电感觉神经网络动力学的影响。此外，还提出了一种针对具有延迟反馈的随机漏电积分发放神经元模型网络动力学的新理论分析。该系统的实验和理论均表明，空间相关性会引发网络振荡，在总刺激功率恒定的情况下，其振荡强度与刺激相关性程度成正比。

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