Top-down and bottom-up attentional control: On the nature of interference from a salient distractor
Top-down and bottom-up attentional control: On the nature of interference from a salient distractor
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DOI：
10.3758/bf03207609
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发表时间：
1999-08-01
期刊：
影响因子：
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通讯作者：
Cave, KR
中科院分区：
文献类型：
--
作者：
Kim, MS;Cave, KR
在两个实验中，使用空间探针，我们测量的时间和空间之间的相互作用，自上而下的控制注意力和自下而上的干扰，从一个显着的干扰视觉搜索。受试者在圆圈中寻找一个正方形，忽略颜色：探针反应时间表明，在视觉处理的早期阶段（在100毫秒的刺激开始之前），一个颜色单一的干扰物可以引起注意它的位置，但只有当颜色单一的干扰物位于远离目标。显然，自下而上激活的单分散的位置是受影响的早期与附近的刺激位置的局部相互作用。此外，探测结果表明，一个单独的分心没有得到注意后，延长的做法。这些结果表明，自上而下的注意力控制是可能的，在视觉处理的早期阶段。在长SOA条件下（150毫秒SOA），空间注意力选择的目标位置的干扰位置，这种趋势发生或没有延长的做法。
In two experiments using spatial probes, we measured the temporal and spatial interactions between top-down control of attention and bottom-up interference from a salient distracter in visual search. The subjects searched for a square among circles, ignoring color: Probe response times showed that a color singleton distracter could draw attention to its location in the early stage of visual processing (before a 100-msec stimulus onset asynchrony [SOA]), but only when the color singleton distracter was located far from the target. Apparently the bottom-up activation of the singleton distracter's location is affected early on by local interactions with nearby stimulus locations. Moreover, probe results showed that a singleton distracter did not receive attention after extended practice. These results suggest that top-down control of attention is possible at an early stage of visual processing. In the long-SOA condition (150-msec SOA), spatial attention selected the target location over distracter locations, and this tendency occurred with or without extended practice.