Competition and sharing of processing resources in visual discrimination.
Competition and sharing of processing resources in visual discrimination.
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视觉辨别中处理资源的竞争和共享。
DOI：
10.1037//0096-1523.23.6.1603
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发表时间：
1997
期刊：
影响因子：
--
通讯作者：
M. Greenlee
中科院分区：
文献类型：
--
作者：
S. Magnussen;M. Greenlee
将空间频率和对比度的辨别阈值分别与对比度和空间频率的双重辨别阈值以及2个对比度或空间频率分量的双重辨别阈值进行比较。这些组件重叠呈现，形成复合光栅或并排的简单光栅。当观察者必须同时判断对比度和空间频率时，辨别阈值增加了正交维度刺激不确定性模型（1.7）预测的量;当他们必须判断2个频率或对比度分量时，辨别阈值增加了3-6倍。组件的相对空间位置与任务复杂性没有相互作用。结果是一致的模型假设一组并行的特殊目的的注意机制。
Discrimination thresholds for spatial frequency and contrast tested individually were compared with dual discrimination of contrast and spatial frequency, and dual discrimination of 2 contrast or spatial frequency components. The components were presented overlapping, forming a compound grating or as side-by-side simple gratings. When observers had to judge contrast and spatial frequency simultaneously, discrimination thresholds increased by an amount predicted by a model of stimulus uncertainty for orthogonal dimensions (1.7); when they had to judge 2 frequency or contrast components, discrimination thresholds increased by a factor of 3-6 compared with the single-judgment task. The relative spatial location of the components did not interact with task complexity. The results are consistent with a model assuming a set of parallel special-purpose attentional mechanisms.
我们可以同时处理大事和小事吗？
影响因子：
1.8
作者：
Farell,B;Pelli,DG
通讯作者：
Pelli,DG
影响因子：
4.1
作者：
EGLY, R;DRIVER, J;RAFAL, RD
通讯作者：
RAFAL, RD
影响因子：
4.1
作者：
VECERA, SP;FARAH, MJ
通讯作者：
FARAH, MJ