The role of a midbrain network in competitive stimulus selection.

The role of a midbrain network in competitive stimulus selection.
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中脑网络在竞争性刺激选择中的作用。

DOI:
10.1016/j.conb.2011.05.024
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发表时间:
2011-08
影响因子:
5.7
通讯作者:
Knudsen EI
Knudsen EI
中科院分区:
医学2区
文献类型:
--
作者:
Mysore SP;Knudsen EI

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中脑网络与著名的额顶前脑网络相互作用,以选择凝视和空间注意力的刺激。中脑网络包含上丘(SC;非哺乳动物脊椎动物中的视顶盖,OT)和峡核,有助于评估竞争刺激的相对优先级,并将它们编码在空间地形图中。猴子的行为实验表明,当竞争刺激的相对优先级相似时,SC 对刺激选择的重要贡献。猫头鹰 OT 的神经生理学结果证明了 SC/OT 的这一重要贡献的神经相关性。中脑网络的多层空间组织有助于对凝视和空间注意力刺激选择的机制进行分析和建模。
A midbrain network interacts with the well-known frontoparietal forebrain network to select stimuli for gaze and spatial attention. The midbrain network, containing the superior colliculus (SC; optic tectum, OT, in non-mammalian vertebrates) and the isthmic nuclei, helps evaluate the relative priorities of competing stimuli and encodes them in a topographic map of space. Behavioral experiments in monkeys demonstrate an essential contribution of the SC to stimulus selection when the relative priorities of competing stimuli are similar. Neurophysiological results from the owl OT demonstrate a neural correlate of this essential contribution of the SC/OT. The multi-layered, spatiotopic organization of the midbrain network lends itself to the analysis and modeling of the mechanisms underlying stimulus selection for gaze and spatial attention.
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