Kiesel Andrea, Kunde Wilfried, Hoffmann Joachim
Department of Psychology, Julius Maximilians University of Würzburg, Röntgenring 11, Germany.
Psychon Bull Rev. 2006 Oct;13(5):800-6. doi: 10.3758/bf03194000.
When a target requires different responses to a relevant and to an irrelevant task in a task-switching paradigm, there is response conflict. This target-induced response conflict was combined with conflict caused by a subliminally presented prime presented prior to the target. We found that target-related conflict reduced prime-induced conflict effects within the same trial However, target-related conflict modified prime-related conflict effects according to the irrelevant stimulus-response (S-R) rule, but not according to the relevant S-R rule. Moreover, trial-to-trial modulations of the target congruency effect were observed in task repetition trials, but not in task switch trials. These results indicate that conflict resolution mechanisms, at least under the present circumstances, operate in a strictly task-specific manner.
当一个目标在任务切换范式中对相关任务和不相关任务需要不同反应时，就会出现反应冲突。这种目标诱发的反应冲突与目标之前呈现的阈下启动刺激所引起的冲突相结合。我们发现，在同一试验中，与目标相关的冲突会降低启动刺激诱发的冲突效应。然而，与目标相关的冲突是根据不相关的刺激-反应（S-R）规则而非相关的S-R规则来改变与启动刺激相关的冲突效应的。此外，在任务重复试验中观察到了目标一致性效应的逐次试验调制，但在任务切换试验中未观察到。这些结果表明，至少在当前情况下，冲突解决机制以严格的任务特定方式运行。
