How decisions evolve: The temporal dynamics of action selection
How decisions evolve: The temporal dynamics of action selection
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DOI：
10.1016/j.cognition.2010.02.004
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发表时间：
2010-06-01
期刊：
影响因子：
3.4
通讯作者：
Goschke, Thomas
中科院分区：
文献类型：
--
作者：
Scherbaum, Stefan;Dshemuchadse, Maja;Goschke, Thomas
为了研究冲突下的决策过程，研究人员通常会分析反应延迟和准确性。然而，这些工具几乎没有提供关于冲突的解决如何随着时间的推移而展开的证据。在这里，我们分析了当参与者执行连续版本的空间冲突任务(Simon任务)时，鼠标移动的轨迹。我们应用多元回归分析和分布分析的新组合来确定当前试验中的冲突和从先前试验中遗留下来的冲突如何影响反应。对前一次试验的反应以及对前一次和当前试验的冲突程度都会影响表现，但它们的影响方式不同：前一次反应影响老鼠轨迹的早期部分，但以前和当前冲突的程度影响后期部分。这表明，在这项任务中，经历冲突的系统可能不会主动准备好在下一次审判中处理冲突；相反，当在随后的审判中遇到冲突时，先前的补偿处理可能会更有效地重新启动。(C)2010爱思唯尔B.V.保留所有权利。
To study the process of decision-making under conflict, researchers typically analyze response latency and accuracy. However, these tools provide little evidence regarding how the resolution of conflict unfolds over time. Here, we analyzed the trajectories of mouse movements while participants performed a continuous version of a spatial conflict task (the Simon task). We applied a novel combination of multiple regression analysis and distribution analysis to determine how conflict on the present trial and carry-over from the previous trial affect responding. Response on the previous trial and the degree of conflict on the previous and the current trial all influenced performance, but they did so differently: The previous response influenced the early part of the mouse trajectory, but the degree of previous and current conflict influenced later parts. This suggests that in this task experiencing conflict may not proactively ready the system to handle conflict on the next trial; rather, when conflict is experienced on the subsequent trial the previous compensatory processing may be re-activated more efficiently. (C) 2010 Elsevier B.V. All rights reserved.