van den Wildenberg Wery P M, van der Molen Maurits W
Department of Psychology, Universiteit van Amsterdam, The Netherlands.
Brain Cogn. 2004 Nov;56(2):253-66. doi: 10.1016/j.bandc.2004.06.006.
This article reports an additive factors analysis of choice reaction and selective stop processes manipulated in a stop-signal paradigm. Three experiments were performed in which stimulus discriminability (SD) and stimulus-response compatibility (SRC) were manipulated in a factorial fashion. In each experiment, the effects of SD and SRC were assessed first for going and next for stopping. Two experiments yielded the anticipated additive relation between SD and SRC for going but stopping appeared to be insensitive to the SD manipulation. Increasing the SD demands in the third experiment by using a different display resulted in a significant (over-additive) interaction between SD and SRC for going and a non-significant (under-additive) interaction for stopping. The pattern of results that emerged from this set of experiments was interpreted to suggest that going and stopping are both similar and different. They are similar in that distinct stages can be identified in both going and stopping but they are also different, as selective stopping seems to be less sensitive to discrimination manipulations relative to going.
本文报告了在停止信号范式中对选择反应和选择性停止过程进行的附加因素分析。进行了三项实验，其中以析因方式操纵刺激辨别力（SD）和刺激-反应兼容性（SRC）。在每个实验中，首先评估SD和SRC对继续任务的影响，然后评估对停止任务的影响。两项实验得出了SD和SRC对继续任务的预期附加关系，但停止任务似乎对SD操纵不敏感。在第三个实验中，通过使用不同的显示方式增加SD要求，结果发现SD和SRC对继续任务产生了显著的（超附加）交互作用，而对停止任务产生了不显著的（次附加）交互作用。从这组实验中得出的结果模式被解释为表明继续任务和停止任务既有相似之处又有不同之处。它们的相似之处在于，在继续任务和停止任务中都可以识别出不同的阶段，但它们也有不同之处，因为相对于继续任务，选择性停止似乎对辨别操纵不太敏感。
