Thomson Sandra J, Danis Lila K, Watter Scott
Department of Psychology, Neuroscience & Behaviour, McMaster University, 1280 Main Street West, Hamilton, Ontario, L8S 4K1, Canada,
Psychon Bull Rev. 2015 Feb;22(1):212-8. doi: 10.3758/s13423-014-0660-z.
The present study investigates the effect of practice in a psychological refractory period (PRP) paradigm on the backward compatibility effect (BCE), in order to determine the locus of this response priming effect on Task1 performance. In two experiments, we show that the size of the BCE is closely associated with the duration of the response selection stage in Task1. When this stage is shortened through PRP practice, the magnitude of the BCE decreases. Subsequently increasing the duration of Task1 response selection results in a larger BCE, but manipulating the same stage in Task2 does not. Our results suggest that the BCE reflects crosstalk of unattended response information for Task2 acting on the response selection stage in Task1, and that response information for two tasks may be activated simultaneously.
本研究探讨了心理不应期（PRP）范式下的练习对逆向兼容性效应（BCE）的影响，以确定这种反应启动效应在任务1表现上的作用位点。在两项实验中，我们表明BCE的大小与任务1中反应选择阶段的持续时间密切相关。当通过PRP练习缩短该阶段时，BCE的幅度会减小。随后增加任务1反应选择的持续时间会导致更大的BCE，但对任务2的同一阶段进行操作则不会。我们的结果表明，BCE反映了任务2未被注意的反应信息对任务1反应选择阶段的串扰，并且两个任务的反应信息可能会同时被激活。
