Conflict-induced perceptual filtering.

Conflict-induced perceptual filtering.
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冲突引起的感知过滤

DOI:
10.1037/a0025902
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发表时间:
2012
期刊:
Journal of experimental psychology. Human perception and performance
影响因子:
--
通讯作者:
Jacobsen
Jacobsen
中科院分区:
--
文献类型:
--
作者:
Luna-Rodriguez;Jacobsen

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在各种冲突范式中,目标刺激和干扰刺激都是根据感知特征来定义的。干扰引起的干扰干扰刺激往往会减少时的比例一致,不一致的试验减少,这表明冲突引起的感知过滤(即,调整处理权重分配给与目标和干扰功能相关的刺激)。为了寻找这种机制的证据,我们进行了侧翼任务,其中目标和干扰物被定义在刺激位置(实验1)或颜色(实验2)。在视觉搜索任务的混合试验中,与目标和干扰物功能相关的处理刺激的效率进行了评估,其中目标被检测到,而不管这些功能。在这两个实验中,搜索时间较短的刺激与目标功能比干扰功能的侧翼任务。这种效果增加的条件下,减少一致/不一致的比例,从而提供证据的冲突依赖的感知过滤。
In a variety of conflict paradigms, target and distractor stimuli are defined in terms of perceptual features. Interference evoked by distractor stimuli tends to be reduced when the ratio of congruent to incongruent trials is decreased, suggesting conflict-induced perceptual filtering (ie, adjusting the processing weights assigned to stimuli associated with the target and with the distractor features). In search of evidence for such a mechanism, we administered a flanker task, in which targets and distractors were defined in terms of stimulus location (Experiment 1) or color (Experiment 2). The efficiency of processing stimuli associated with target and distractor features was assessed in intermixed trials of a visual search task, in which a target had to be detected irrespective of these features. In both experiments search times were shorter for stimuli associated with the target feature than with the distractor feature of the flanker task. This effect was increased under conditions of a reduced congruent/incongruent ratio, thereby providing evidence for conflict-dependent perceptual filtering.
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