Christ S, Falkenstein M, Heuer H, Hohnsbein J
Institut für Arbeitsphysiologie an der Universität Dortmund (IfADo), Ardeystrasse 67, D-44139, Dortmund, Germany.
Biol Psychol. 2000 Jan;51(2-3):129-50. doi: 10.1016/s0301-0511(99)00034-4.
We tested the hypothesis that in spatial stimulus-response-compatibility (SRC) tasks two different error types occur: A noise-induced 'general error' independent of SRC and reaction time and a 'position driven error' in incompatible trials with short RT being driven by the irrelevant stimulus position. A second issue was whether error detection is different for these two types of errors, which should be reflected by differences in the error negativity (Ne), since the Ne is seen as a neural correlate of error detection. To study these issues, we used a Simon- and a spatial Stroop-task. In incompatible (vs. compatible) trials we found more errors and a below chance accuracy in fast responses. Neither the amplitude nor the latency of the Ne were significantly affected by the experimental factors. This pattern of behavioural results supports the above hypothesis of two error types in such tasks. The Ne results indicate that error detection is similar for both types of errors.
在空间刺激-反应相容性（SRC）任务中会出现两种不同类型的错误：一种是与SRC和反应时间无关的由噪声引起的“一般错误”，另一种是在不相容试验中由无关刺激位置驱动的、反应时较短的“位置驱动错误”。第二个问题是，这两种错误的错误检测是否不同，这应该通过错误负波（Ne）的差异来体现，因为Ne被视为错误检测的神经关联指标。为了研究这些问题，我们使用了西蒙任务和空间斯特鲁普任务。在不相容（与相容相比）试验中，我们发现快速反应中有更多错误且准确率低于机会水平。实验因素对Ne的波幅和潜伏期均无显著影响。这种行为结果模式支持了上述关于此类任务中两种错误类型的假设。Ne的结果表明，两种类型错误的错误检测是相似的。
