采用部分线索效应经典范式与情绪Stroop任务相结合的范式,采取更为敏感的指标,对部分线索效应的认知抑制进程进行了考察,同时为提取抑制假说提供证据。结果发现,部分线索呈现后进行情绪Stroop任务,部分线索组反应时显著短于自由回忆组,提取结束后进行情绪Stroop任务,部分线索组和自由回忆组反应时差异不显著,提取未完成时,部分线索组反应时显著短于自由回忆组。结果提示,在以情绪词为实验材料的部分线索效应中,抑制在部分线索呈现之后即发生,提取未完成时,抑制持续存在,研究结果支持提取抑制假说,同时也对提取抑制假说做了一定补充,即抑制的持续时间受随后是否有提取任务调节。
When people are asked to recall items from a previously studied list and are given a subset of the items on that list as retrieval cues, they often do more poorly at recalling the remaining items on the list than do people asked to recall the items in the absence of such retrieval cues (Slamecka, 1968). Such part-list cuing effect has often been attributed to inhibitory executive-control processes that supposedly suppress the non-cue items' memory representation. Our aim in the present study was to further evaluate the inhibitory executive-control account of part-list cuing effect. Using a new paradigm which combines the classical part-list cuing paradigm with emotional Stroop task, adopting a more sensitive index, the present study retested the retrieval inhibition hypothesis of part-list cuing effect. Four experiments were included. In Experiments 1, we explored whether the inhibition occurs after the presence of part-list cues by inserting the emotional Stroop task between the presence of part-list cues and the retrieval phase, In Experiments 2 and 3, we explored whether the inhibition still persist after the retrieval phase by inserting the emotional Stroop task after the retrieval phase, On the basis of Experiment 2 and 3, in Experiment 4, an inadequate retrieval time was used to further investigate the inhibition process during the retrieval phase. The findings showed that: when the emotional Stroop task was performed after the presentation of the part-list cues, the reaction time of part-list cuing recall group was shorter than free recall group; while when the emotional Stroop task was performed after the retrieval phase, no difference between part-list cuing recall group and free recall group was observed; and when the retrieval was not fulfilled, the reaction time of part-list cuing recall group was shorter than free recall group. The present findings revealed that in the part-list cuing effect, inhibition occurred as soon as the part-list cues were provided, and before the full completion of