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The ability to inhibit prepotent responses is a core executive function, but the relation of response inhibition to other cognitive operations is poorly understood. In the study reported here, we examined inhibitory control through the lens of incidental memory. Participants categorized face stimuli by gender in a go/no-go task (Experiments 1 and 2) or a stop-signal task (Experiment 3) and, after a short delay, performed a surprise recognition memory task for those faces. Memory was impaired for stimuli presented during no-go and stop trials compared with those presented during go trials. Experiment 4 showed that this inhibition-induced forgetting was not attributable to event congruency. In Experiment 5, we combined a go/no-go task with a dot-probe test and found that probe detection during no-go trials was inferior to that on go trials. This result supports the hypothesis that inhibition-induced forgetting occurs when response inhibition shunts attentional resources from perceptual stimulus encoding to action control.
