Fischer Rico, Plessow Franziska, Kiesel Andrea
Technische Universität Dresden, Germany.
Exp Psychol. 2010;57(2):89-97. doi: 10.1027/1618-3169/a000012.
Irrelevant tone (accessory) stimuli facilitate performance in simple and choice reaction time tasks. In the present study, we combined accessory stimulation with a selective attention paradigm in order to investigate its influence on mechanisms of response selection. In the framework of a spatial stimulus-response compatibility task (Simon task), we tested whether accessory stimuli selectively affect bottom up triggered response activation processes (e.g., direct route processing), processing of task-relevant stimulus features (indirect route processing), or both/none. Results suggest a two-component effect of accessory stimuli within this selective attention task. First, accessory stimuli increased the Simon effect due to beneficial direct route processing. Second, accessory stimuli generally decreased reaction times indicating facilitation of indirect route processing.
无关音调（辅助）刺激可促进简单反应时任务和选择反应时任务的表现。在本研究中，我们将辅助刺激与选择性注意范式相结合，以研究其对反应选择机制的影响。在空间刺激-反应相容性任务（西蒙任务）的框架内，我们测试了辅助刺激是否选择性地影响自下而上触发的反应激活过程（例如，直接路径加工）、与任务相关的刺激特征的加工（间接路径加工），或两者/都不影响。结果表明，在这个选择性注意任务中，辅助刺激具有双成分效应。首先，由于有益的直接路径加工，辅助刺激增加了西蒙效应。其次，辅助刺激总体上缩短了反应时，表明促进了间接路径加工。
