The comparison of visual working memory representations with perceptual inputs.

The comparison of visual working memory representations with perceptual inputs.
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DOI:
10.1037/a0015019
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发表时间:
2009-08
期刊:
Journal of experimental psychology. Human perception and performance
影响因子:
--
通讯作者:
Luck SJ
Luck SJ
中科院分区:
其他
文献类型:
--
作者:
Hyun JS;Woodman GF;Vogel EK;Hollingworth A;Luck SJ

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人类视觉系统可以注意到以前的视觉输入的记忆和新视觉输入的感知之间的差异,但是检测这些差异的比较过程尚未得到很好的表征。这项研究验证了一个假设,即刺激阵列的记忆和新阵列的感知之间的差异是通过一种类似于视觉搜索任务中简单特征的检测方式来检测的。也就是说,就像视觉搜索中任务相关特征的存在可以被并行检测到,触发注意力快速转移到包含该特征的对象上一样,沿着任务相关维度的记忆感知差异的存在可以被并行检测到,触发注意力快速转移到改变的对象上。支持性证据是在一系列实验中获得的,这些实验检查了手动反应时间、跳眼反应时间和事件相关的潜在潜伏期。然而,这些实验也表明,在观察者能够做出手动变化检测响应之前,必须经历一个缓慢的、有限容量的过程。
The human visual system can notice differences between memories of previous visual inputs and perceptions of new visual inputs, but the comparison process that detects these differences has not been well characterized. This study tests the hypothesis that differences between the memory of a stimulus array and the perception of a new array are detected in a manner that is analogous to the detection of simple features in visual search tasks. That is, just as the presence of a task-relevant feature in visual search can be detected in parallel, triggering a rapid shift of attention to the object containing the feature, the presence of a memory-percept difference along a task-relevant dimension can be detected in parallel, triggering a rapid shift of attention to the changed object. Supporting evidence was obtained in a series of experiments that examined manual reaction times, saccadic reaction times, and event-related potential latencies. However, these experiments also demonstrated that a slow, limited-capacity process must occur before the observer can make a manual change-detection response.
DOI: 10.1037/0096-1523.20.2.317
发表时间: 1994-04-01
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