Life is so colorful!分享 http://blog.sciencenet.cn/u/kernelfan My love and my colorful life!

博文

Frequency-difference-dependent SR in neural systems

已有 1897 次阅读 2017-8-27 17:57 |系统分类:论文交流

Understanding the dynamical response of neurons to multiple noisy oscillatory signals from different brain regions is fundamental for neural information processing. In this study, the authors investigate the response of neural systems to the weak envelope modulation signal superimposed by two different periodic signals with the assistance of neuronal noise. The authors find that stochastic resonance occurs at the beat frequency in neural systems at both the single-neuron and the population level. Interestingly, the performance of this frequency-difference dependent stochastic resonance is regulated by both the beat frequency and forcing frequencies, and a population of neurons with fine-tuning of the excitation-inhibition balance is more efficient in detecting the information carried by the weak envelope modulation signal. These results help clarify the biophysical mechanism of the frequency-difference dependent stochastic resonance in neural systems. After a long time of evolution, it is reasonable to suppose that our brain might have the abilities to use neuronal noise to achieve stable transmission for frequency-difference information, which can be further used by the brain to perform higher cognitive tasks.


Frequency-difference-dependent stochastic resonance in neural systems.pdf





http://blog.sciencenet.cn/blog-97481-1072971.html

上一篇:莫扎特效应的关键因素——节奏
下一篇:电子科技大学神经工程与神经数据团队诚招博士后

1 段法兵

该博文允许注册用户评论 请点击登录 评论 (1 个评论)

数据加载中...
扫一扫,分享此博文

Archiver|手机版|科学网 ( 京ICP备07017567号-12 )

GMT+8, 2020-11-24 09:49

Powered by ScienceNet.cn

Copyright © 2007- 中国科学报社

返回顶部