The time course of effort mobilization and strategic adjustments of response criteria
The time course of effort mobilization and strategic adjustments of response criteria
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DOI：
10.1007/s004260100062
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发表时间：
2001-08-01
影响因子：
2.3
通讯作者：
Kleinsorge, T
中科院分区：
文献类型：
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作者：
Kleinsorge, T
在两个选择的反应时间实验中，参与者被指示在一个可变的提示间隔内加快20%的实验的反应速度，并在其余的实验中保持他们的基本表现水平。实现这一目标得到了金钱奖励。在迫在眉睫的刺激措施开始之前，加快速度的要求以不同的间隔发出信号。需要回答的主要问题是，参与者是否能够动态调整他们的反应速度，如果是这样的话，速度加快是因为加强了努力，真正提高了绩效，还是由于调整了反应标准，同时兼顾了速度和准确性。这两个实验的数据都表明，参与者能够投入一些额外的努力，其数量随着预告间隔的长度而变化。这种加速在反应时间分布的最快箱中已经很明显，表明处理效率的持续调节。只有在第一个实验中，才有明确的证据表明，除了努力动员之外，还需要在速度和准确性之间进行权衡。
In two-choice reaction time experiments, participants were instructed within a variable precueing interval to speed up responding in 20% of trials and to maintain their basic level of performance in the remaining trials. The achievement of this goal was rewarded by a monetary bonus. The requirement to speed up was signaled at varying intervals before the onset of the imperative stimulus. The main questions to be answered were whether participants would be able to dynamically adjust their response speed, and if so, whether a speed up would be due to enhanced effort with a genuine improvement of performance or due to an adjusted response criterion, accompanied by a speed-accuracy trade-off. The data of both experiments suggest that participants were able to invest some extra effort, the amount of which varied as a function of the length of the precueing interval. This speed-up was evident already in the fastest bins of the reaction time distribution, indicating a continuous modulation of processing efficiency. Only in the first experiment was there clear evidence for a speed-accuracy trade-off in addition to effort mobilization.