Control over location-based response activation in the Simon task:: Behavioral and electrophysiological evidence
Control over location-based response activation in the Simon task:: Behavioral and electrophysiological evidence
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DOI：
10.1037//0096-1523.28.6.1345
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发表时间：
2002-12-01
影响因子：
2.1
通讯作者：
Sommer, W
中科院分区：
文献类型：
--
作者：
Stürmer, B;Leuthold, H;Sommer, W
在4个Simon实验中，作者考察了对感觉运动加工的两种途径的控制：无条件途径中的反应启动和条件途径中的反应选择。西蒙效应随着非对应试验频率的增加而减弱。基于位置的反应启动，观察只有当刺激遵循相应的事件，但不经过noncorresponding试验。因此，无条件的路线似乎被抑制时，任务上下文指示启动为潜在的不利。此外，任务无关的刺激位置被用于响应选择作为对应概率的函数。虽然刺激-反应序列的精确重复引起反应的显著加速，但这第三种机制独立于条件路线中的无条件路线抑制和基于频率的调整。
In 4 Simon experiments the authors examined control over 2 routes of sensorimotor processing: response priming in the unconditional route and response selection via the conditional route. The Simon effect diminished as the frequency of noncorresponding trials increased. Location-based response priming was observed only when the stimulus followed a corresponding event but not after a noncorresponding trial. Therefore, the unconditional route appears to be suppressed whenever the task context indicates priming as potentially disadvantageous. Moreover, the task-irrelevant stimulus location was used for response selection as a function of correspondence probability. Although exact repetitions of stimulus-response sequences caused a marked speed-up of responses, this 3rd mechanism is independent of unconditional route suppression and frequency-based adjustments in the conditional route.