The locus of speed-accuracy trade-off in reaction time:: Inferences from the lateralized readiness potential
The locus of speed-accuracy trade-off in reaction time:: Inferences from the lateralized readiness potential
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DOI：
10.1037/0096-3445.133.2.261
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发表时间：
2004-06-01
影响因子：
4.1
通讯作者：
Mattes, S
中科院分区：
文献类型：
--
作者：
Rinkenauer, G;Osman, A;Mattes, S
横向准备电位（lrp）被用来确定反应时间（RT）的阶段(s)负责速度-准确性权衡（sat）。基于几种类型信息的快速决策在3个实验中进行了检验，分别涉及线辨别任务，词汇决策和埃里克森侧卫任务。通过自适应跟踪算法调整响应时限，每个实验获得三个等级的SAT。在所有实验中，速度应力对LRP开始前后的RT阶段持续时间都有影响。后一种效应不能用猜测策略、反应力的变化或lrp前效应的间接结果来解释。与大多数模型相反，它表明SAT可能发生在决策后的后期阶段。
Lateralized readiness potentials (LRPs) were used to determine the stage(s) of reaction time (RT) responsible for speed-accuracy trade-offs (SATs). Speeded decisions based on several types of information were examined in 3 experiments, involving, respectively, a line discrimination task, lexical decisions, and an Erikson flanker task. Three levels of SAT were obtained in each experiment by adjusting response deadlines with an adaptive tracking algorithm. Speed stress affected the duration of RT stages both before and after the start of the LRP in all experiments. The latter effect cannot be explained by guessing strategies, by variations in response force, or as an indirect consequence of the pre-LRP effect. Contrary to most models, it suggests that SAT can occur at a late postdecisional stage.