Smaller backward crosstalk effects for free choice tasks are not the result of immediate conflict adaptation
Smaller backward crosstalk effects for free choice tasks are not the result of immediate conflict adaptation
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自由选择任务的较小后向串扰效应并不是立即冲突适应的结果
DOI：
10.1007/s10339-018-0887-0
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发表时间：
2019
影响因子：
1.7
通讯作者：
Janczyk
中科院分区：
文献类型：
--
作者：
Naefgen;Janczyk
在双重任务的情况下，相互干扰的现象经常被观察到。这种现象的一个特别有趣的例子是，如果任务2需要兼容的（例如，两个响应都在左侧给出）而不是不兼容的响应（例如，一个响应在右侧给出，另一个在左侧给出）。这被称为基于兼容性的后向串扰效应（BCE）。在以前的论文中，我们观察到支持刺激-反应（S-R）链接在引起这种效应中的关键作用：当两个任务之一是自由选择任务时，BCE较小。然而，对这一观察结果的另一种解释是，自由选择任务导致立即的冲突适应，从而减少了其他任务的干扰。在目前的两个实验中，我们通过依次改变自由选择任务引起的冲突量来测试这一解释（Exp. 1)或逐块（Exp. 2）。虽然我们用两个强迫选择任务复制了BCE的顺序调制，但我们观察到（1）（兼容的）自由选择试验没有减少BCE，也没有观察到（2）自由选择试验频率的块式操纵对BCE大小的影响。因此，虽然BCE是敏感的顺序调制引起的（在）兼容性的两个被迫选择的反应，这可能指向冲突适应，减少BCE在双任务的情况下，涉及自由选择任务可能是由于其较弱的S-R链接。
In dual-task situations, mutual interference phenomena are often observed. One particularly interesting example of such phenomena is that even Task 1 performance is improved if Task 2 requires a compatible (e.g., both responses are given on the left side) instead of an incompatible response (e.g., one response is given on the right side, and the other on the left side). This is called the compatibility-based backward crosstalk effect (BCE). In a previous paper, we observed support for a critical role of stimulus–response (S–R) links in causing this effect: The BCE was smaller when one of the two tasks was a free choice task. However, an alternative explanation for this observation is that free choice tasks lead to immediate conflict adaptation, thereby reducing the interference from the other task. In the present two experiments, we tested this explanation by varying the amount of conflict assumed to be induced by a free choice task either sequentially (Exp. 1) or block-wise (Exp. 2). While we replicated a sequential modulation of the BCE with two forced choice tasks, we observed (1) no reduction of the BCE induced by (compatible) free choice trials nor (2) an effect of block-wise manipulations of the frequency of free choice trials on the size of the BCE. Thus, while the BCE is sensitive to sequential modulations induced by the (in)compatibility of two forced choice responses, which might point to conflict adaptation, the reduced BCE in dual-task situations involving a free choice task is likely due to its weaker S–R links.
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DOI：
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发表时间：
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期刊：
Psychological Research
影响因子：
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DOI：
--
发表时间：
2016
期刊：
Attention, perception & psychophysics
影响因子：
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作者：
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