Control from below: the role of a midbrain network in spatial attention.

Control from below: the role of a midbrain network in spatial attention.
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DOI:
10.1111/j.1460-9568.2011.07696.x
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发表时间:
2011-06
期刊:
The European journal of neuroscience
影响因子:
--
通讯作者:
Knudsen EI
Knudsen EI
中科院分区:
其他
文献类型:
--
作者:
Knudsen EI

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空间注意力使大脑能够有选择地分析和评估来自空间特定位置的信息,这是任何动物在复杂世界中自适应行为所必需的能力。我们通常认为空间注意力是由前脑的额顶网络控制的。然而,新出现的证据表明,中脑网络在控制空间注意力方面也起着关键作用。此外,中脑网络的高度分化和视网膜定位组织,特别是在鸟类中,使其易于使用现代技术进行详细分析,从而可以阐明注意的回路、细胞和突触机制。下面的综述讨论了中脑网络在控制注意力方面的作用,支持这一作用的神经回路,以及关于这些回路执行计算的最新知识。
Spatial attention enables the brain to analyze and evaluate information selectively from a specific location in space, a capacity essential for any animal to behave adaptively in a complex world. We usually think of spatial attention as being controlled by a fronto-parietal network in the forebrain. However, emerging evidence shows that a midbrain network also plays a critical role in controlling spatial attention. Moreover, the highly differentiated, retinotopic organization of the midbrain network, especially in birds, makes it amenable to detailed analysis with modern techniques that can elucidate circuit, cellular and synaptic mechanisms of attention. The following review discusses the role of the midbrain network in controlling attention, the neural circuits that support this role, and current knowledge about the computations performed by these circuits.
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