Precueing spatial S-R correspondence: is there regulation of expected response conflict?
Precueing spatial S-R correspondence: is there regulation of expected response conflict?
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DOI：
10.1037/0096-1523.34.4.872
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发表时间：
2008-08
期刊：
影响因子：
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通讯作者：
Peter Wühr;Wilfried Kunde
中科院分区：
文献类型：
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作者：
Peter Wühr;Wilfried Kunde
四个实验研究了在选择-反应任务中准备即将到来的刺激-反应对应水平的能力。在西蒙任务中，参与者对空间可变刺激的颜色做出了空间可变的反应。参与者提前获得有关即将到来的刺激反应事件是否是空间对应的，中性的或空间不对应的信息。可靠的线索减少了2-和3-选择任务相应条件下的反应时（RT），减少了2-选择任务非相应条件下的RT，但在3-选择任务中却没有减少，并且在中性条件下RT不受影响。结果的模式表明，参与者使用可靠的线索，响应名义上无关的刺激位置，如果正确的反应可以推断出位置（注意切换）。相比之下，缺乏提示效果的表现在非相应的条件下的3选择任务表明，参与者不能使用线索改变注意力的权重处理通道不同的刺激尺寸（门控）。总之，门控可能参与了经验反应冲突的调节，但目前的结果表明，它不参与预期反应冲突的调节（即，预测）反应冲突。
Four experiments investigated the ability to prepare for the level of forthcoming stimulus-response correspondence in choice-response tasks. In a Simon task, participants responded to the color of spatially variable stimuli with spatially variable responses. Participants were given advance information about whether a forthcoming stimulus-response event would be spatially corresponding, neutral, or spatially noncorresponding. Reliable cues decreased reaction times (RTs) in the corresponding conditions of 2- and 3-choice tasks, decreased RTs in noncorresponding conditions of a 2-choice task but not in a 3-choice task, and left RTs in neutral conditions unaffected. The pattern of results suggests that participants used reliable cues for responding to the nominally irrelevant stimulus location if the correct response could be inferred from location (attention switching). By contrast, the lack of cueing effects on performance in noncorresponding conditions of 3-choice tasks suggests that participants cannot use cues for changing the attentional weights of processing channels for different stimulus dimensions (gating). In summary, gating may be involved in the regulation of experienced response conflict, but the present results suggest that it is not involved in the regulation of expected (i.e., predicted) response conflict.