Levels-of-processing effects on conceptual automatic memory

This study aimed to provide converging evidence for the conceptual processing effect on conceptual priming that involved automatic retrieval. Two experiments examined whether the levels-of-processing manipulation affects the conceptual priming effect in the speeded category-production task and the relation between the magnitude of conceptual priming and the level of participants' awareness of the study-test relationship. In the implicit category-production task, participants were required to respond to the category name with the first corresponding category member to come to mind, whereas in the explicit category-cue recall task, participants were instructed to use the category name as a cue to recall the studied word. Response speed was emphasised for all participants. The results, based on response times, suggest that the implicit groups did not shift to a conscious retrieval strategy after the practice trial. The magnitude of priming was also not related to participants' test-awareness. Furthermore, both conceptual implicit and explicit tests were sensitive to the levels-of-processing manipulation after considering the problems of both conscious contamination and diminished lexical processing. Using a purer measure of conceptual implicit memory, this study replicated the previous findings of the levels-of-processing effect on the conceptual implicit test.