Selective attention within the foveola.

Selective attention within the foveola.
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DOI:
10.1038/nn.4622
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发表时间:
2017-10
影响因子:
25
通讯作者:
Carrasco M
Carrasco M
中科院分区:
医学1区
文献类型:
--
作者:
Poletti M;Rucci M;Carrasco M

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注意力资源的有效控制和高敏锐度视力都是生存的基础。已知视觉注意力的转移会秘密地增强远离注视中心的位置处的处理,其中视觉分辨率较低。然而,选择性空间注意力是否在观察者已经看过的地方起作用,即,在高敏锐度的小凹内,小而重要的视网膜无杆区域。使用新的方法精确控制视网膜刺激,在这里,我们表明,内隐注意灵活地提高和加快检测和歧视的位点只有一小部分的程度内凹分开。这些发现揭示了一个令人惊讶的精确控制的注意力和它的参与精细的空间视觉。他们表明,通常研究的注意力从中央凹转移的内隐转移是一种全球机制的表达,这种机制在整个视野中发挥作用。
Efficient control of attentional resources and high-acuity vision are both fundamental for survival. Shifts in visual attention are known to covertly enhance processing at locations away from the center of gaze, where visual resolution is low. It is unknown, however, whether selective spatial attention operates where the observer already looks, i.e., within the high-acuity foveola, the small, yet disproportionally important rod-free region of the retina. Using new methods for precisely controlling retinal stimulation, here we show that covert attention flexibly improves and speeds-up both detection and discrimination at loci only a fraction of a degree apart within the foveola. These findings reveal a surprisingly precise control of attention and its involvement in fine spatial vision. They show that the commonly studied covert shifts of attention away from the fovea are the expression of a global mechanism that exerts its action across the entire visual field.
DOI: 10.1038/361719a0
发表时间: 1993-02-25
期刊: NATURE
影响因子: 64.8
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发表时间: 2003-07-01
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