MOE Key Laboratory of Modern Teaching Technology, Shaanxi Normal University, Xi'an, 710062, PR China.
School of Education Science, Jiangsu Normal University, Xuzhou, 221116, PR China.
Neuropsychologia. 2020 Nov;148:107639. doi: 10.1016/j.neuropsychologia.2020.107639. Epub 2020 Sep 29.
The present study used event-related potentials (ERPs) to investigate the contribution of perceptual fluency to recognition memory in different fluency contexts. In a recognition memory test with a modified remember-know paradigm, we employed conceptually impoverished items (kaleidoscope images) as stimuli and manipulated the perceptual fluency of recognition test cues through masked repetition priming. There were two fluency context conditions. In the random fluency context (RC) condition, primed and unprimed trials were randomly inter-mixed. In the blocked fluency context (BC) condition, primed and unprimed trials were grouped into blocks. Behavioral results showed that priming elevated the incidence of remember hits and the accuracy of remember judgements in the RC condition; no such effects were evident in the BC condition. In addition, priming effects on reaction times were found only for remember hit responses in the RC condition. The ERP results revealed an early100-200 ms effect related to masked repetition priming, which took the form of greater positivity for primed than unprimed trials. This effect was modulated neither by fluency context or response type. The present findings suggest that perceptual fluency induced by masked repetition priming affects recollection-related memory judgments in a specific fluency context and indicate that relative, rather absolute, fluency plays a critical role in influencing recognition memory judgments.
本研究采用事件相关电位（ERPs）技术，考察了在不同流畅度语境下，知觉流畅度对识别记忆的贡献。在一项采用修正的记得-知道范式的识别记忆测试中，我们使用概念性贫乏的项目（万花筒图像）作为刺激，并通过掩蔽重复启动来操纵识别测试线索的知觉流畅度。有两种流畅度语境条件。在随机流畅度语境（RC）条件下，启动和未启动的试验随机混合。在固定流畅度语境（BC）条件下，启动和未启动的试验被分为组块。行为结果表明，在 RC 条件下，启动增加了记得击中的发生率和记得判断的准确性；在 BC 条件下，没有出现这种效应。此外，在 RC 条件下，只有对记得击中的反应才有启动效应的反应时影响。ERP 结果揭示了一个与掩蔽重复启动相关的早期 100-200 毫秒的效应，表现为启动试验的正性大于未启动试验。这种效应不受流畅度语境或反应类型的调节。本研究结果表明，掩蔽重复启动引起的知觉流畅度在特定的流畅度语境中影响与回忆相关的记忆判断，表明相对流畅度而非绝对流畅度在影响识别记忆判断中起着关键作用。
