Hübner Ronald, Druey Michel D
Fachbereich Psychologie, Universität Konstanz, Fach D29, 78457, Konstanz, Germany.
Psychol Res. 2008 Jul;72(4):415-24. doi: 10.1007/s00426-007-0118-2. Epub 2007 May 30.
Several task-switch studies show that response category repetition is favorable on task repetition trials, but disadvantageous on task switch trials. In the present study we investigated how this interaction depends on the type and number of involved response categories. In a dual-task number-categorization experiment, subjects had to respond to tasks T(1) and T(2) with one of the two fingers of their left and right hand, respectively. For one group of participants, the use of spatial response categories, and for another group the use of finger-type categories was induced. It turned out that the interaction between task switching and response category repetition was clearly related to the induced response categories, but at the same time, the spatial categories nevertheless also affected response selection in the finger-type group. However, these two effects were additive. This shows that multiple response codes can simultaneously be involved in response selection, but that they affect performance differentially.
多项任务切换研究表明，反应类别重复在任务重复试验中具有优势，但在任务切换试验中则具有劣势。在本研究中，我们调查了这种相互作用如何取决于所涉及的反应类别的类型和数量。在一项双任务数字分类实验中，受试者必须分别用左手和右手的两根手指之一对任务T(1)和T(2)做出反应。对于一组参与者，诱导其使用空间反应类别，而对于另一组参与者，诱导其使用手指类型类别。结果表明，任务切换和反应类别重复之间的相互作用与诱导的反应类别明显相关，但同时，空间类别也影响了手指类型组中的反应选择。然而，这两种效应是相加的。这表明多个反应代码可以同时参与反应选择，但它们对表现的影响有所不同。
