Neural Circuits That Mediate Selective Attention: A Comparative Perspective.

Neural Circuits That Mediate Selective Attention: A Comparative Perspective.
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DOI:
10.1016/j.tins.2018.06.006
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发表时间:
2018-11
影响因子:
15.9
通讯作者:
Knudsen EI
Knudsen EI
中科院分区:
医学1区
文献类型:
--
作者:
Knudsen EI

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选择性注意是认知的核心。在理解调节选择性注意的神经回路方面已经取得了巨大的进展。在灵长类动物中,前脑网络最为发达,它根据任务要求和刺激的物理显著性来控制所有形式的注意力。这些网络包含将自上而下的信号分配到感觉处理区域并增强这些区域的信息处理的电路。鸟类的中脑网络控制着空间注意力。它包含的电路可以连续计算最高优先级的刺激位置,并将感官信息从选定的位置路由到做出认知决策的前脑网络。这些回路的识别,它们的功能和机制代表了我们对脊椎动物大脑如何介导选择性注意的理解的重大进展。
Selective attention is central to cognition. Dramatic advances have been made in understanding the neural circuits that mediate selective attention. Forebrain networks, most elaborated in primates, control all forms of attention based on task demands and the physical salience of stimuli. These networks contain circuits that distribute top-down signals to sensory processing areas and enhance information processing in those areas. A midbrain network, most elaborated in birds, controls spatial attention. It contains circuits that continuously compute the highest priority stimulus location and route sensory information from the selected location to forebrain networks that make cognitive decisions. The identification of these circuits, their functions and mechanisms represent a major advance in our understanding of how the vertebrate brain mediates selective attention.
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