Non-stationary properties of spatio-temporal activities in the brain

大脑时空活动的非平稳特性

• 批准号: 21500226
• 负责人: ITO Hiroyuki
• 金额: $ 2.5万
• 依托单位: Kyoto Sangyo University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2009
• 资助国家: 日本
• 起止时间: 2009 至 2011
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-21500226/
• 关键词: 複雑系; 神経科学; 多細胞同時記録; 神経ダイナミクス; スパイク相関; 同期振動; 非定常相関; 統計検定; マルチニューロン; ユニタリーイベント

Recently, simultaneous recordings of multiple neuronal activities in the brain have become popular and those studies have provided new insights for the manner of information processing at the neuronal network level. Especially, much attention has been attracted on the precise temporal correlation in spiking activities among multiple neurons. Those characteristics are thought to become a key concept in understanding the information coding in the brain. In the current study, we provided a novel statistical method for analyzing non-stationary modulation of spike timing correlation between the two neurons, and successfully applied it to the experimental data.

最近，同时记录大脑中多个神经元活动已变得流行，这些研究为神经元网络层面的信息处理方式提供了新的见解。特别是，多个神经元之间尖峰活动的精确时间相关性引起了人们的广泛关注。这些特征被认为成为理解大脑信息编码的关键概念。在当前的研究中，我们提供了一种新颖的统计方法来分析两个神经元之间尖峰时序相关性的非平稳调制，并成功地将其应用于实验数据。

项目成果

Functional spike synchrony has significantly larger onset latency than anatomical spike synchrony in the cat lateral geniculate nucleus

在猫外侧膝状核中，功能性尖峰同步性的起始潜伏期明显大于解剖性尖峰同步性

• 发表时间: 2010
• 期刊: Soc. Neurosci. Abstr
• 作者: H. Ito;PE. Maldonado and CM. Gray
• 通讯作者: PE. Maldonado and CM. Gray

Dynamics of stimulus-evoked spike timing correlations in the cat lateral geniculate nucleus

猫外侧膝状核中刺激诱发的尖峰计时相关性的动态

• DOI: 10.1152/jn.01000.2009
• 发表时间: 2010
• 期刊: J. Neurophysiol
• 作者: H. Ito;PE. Maldonado and CM. Gray
• 通讯作者: PE. Maldonado and CM. Gray

Correlated trial variabilities in cat visual cortex and the possibility of their stimulus dependences

猫视觉皮层的相关试验变异及其刺激依赖性的可能性

• 发表时间: 2012
• 作者: Ito;H
• 通讯作者: H

Correlated trial variabilities between single units in the cat visual cortex. stimulus dependence and its relation with the firing rate tuning.

猫视觉皮层单个单元之间的相关试验变异。

• 发表时间: 2010
• 期刊: Neuroscience Research
• 影响因子: 2.9
• 作者: S. Kurogi;T. Nagi;S. Yoshinaga;H. Koya;and T. Nishida;Y. Maruyama and H. Ito
• 通讯作者: Y. Maruyama and H. Ito

生物進化の持続性と転移

生物进化的持续和转移

• 发表时间: 2011
• 作者: 伊藤浩之