Performing two tasks simultaneously involves the coordination of their processing. Task coordination is particularly required in dual-task situations with varying order of the component tasks. When task order switches between subsequent trials, task-order coordination leads to order switch costs in comparison to task order repetitions (i.e., worse performance in trials associated with an order switch compared to an order repetition). However, the adaptive characteristics of task-coordination processes and order switch costs are underspecified so far. For example, studies on conflict control have shown that these coordination processes can be modulated in response to changes in task demands. The present study investigated therefore whether task-order coordination processes are modulated by the previous experience of a task-order switch. To investigate order switch costs in a dual-task situation with two sensorimotor tasks with variable task-order, we analyzed performance in current trials with task-order switches and with task-order repetitions following task-order switches and task order repetitions in the preceding trial. The data of four different experimental conditions showed that order switch costs were reduced in trials following task-order switches compared to task-order repetitions; resembling the Gratton effect commonly observed in conflict adaptation paradigms. We discussed the present results in the context of task-order set representations, cognitive control theories, and dual-task models.

同时执行两个任务需要协调它们的处理。在具有不同顺序的组件任务的双任务情况下，特别需要任务协调。当任务订单在后续试用之间切换时，与任务订单重复相比，任务订单协调会导致订单切换成本增加（即与订单重复相比，与订单切换相关的试验中的性能更差）。但是，到目前为止，任务协调过程和订单切换成本的适应性特征还不够明确。例如，对冲突控制的研究表明，可以根据任务需求的变化来调整这些协调过程。因此，本研究调查了任务顺序协调过程是否由任务顺序切换的先前经验来调节。为了研究在具有两个任务顺序可变的两个感觉运动任务的双任务情况下的命令切换成本，我们分析了当前试验中具有任务顺序切换以及后续任务顺序切换和任务顺序重复之后的任务顺序重复的性能。审判。四个不同实验条件的数据表明，与任务订单重复相比，任务订单切换后的试验降低了订单切换成本。类似于冲突适应范例中常见的格拉顿效应。我们在任务顺序集表示，认知控制理论和双重任务模型的背景下讨论了当前结果。我们使用任务顺序切换以及在先前试验中的任务顺序切换和任务顺序重复之后的任务顺序重复来分析当前试验中的性能。四个不同实验条件的数据表明，与任务订单重复相比，任务订单切换后的试验降低了订单切换成本。类似于冲突适应范例中常见的格拉顿效应。我们在任务顺序集表示，认知控制理论和双重任务模型的背景下讨论了当前结果。我们使用任务顺序切换以及在先前试验中的任务顺序切换和任务顺序重复之后的任务顺序重复来分析当前试验中的性能。四个不同实验条件的数据表明，与任务订单重复相比，任务订单切换后的试验降低了订单切换成本。类似于冲突适应范例中常见的格拉顿效应。我们在任务顺序集表示，认知控制理论和双重任务模型的背景下讨论了当前结果。类似于冲突适应范例中常见的格拉顿效应。我们在任务顺序集表示，认知控制理论和双重任务模型的背景下讨论了当前结果。类似于冲突适应范例中常见的格拉顿效应。我们在任务顺序集表示，认知控制理论和双重任务模型的背景下讨论了当前结果。