Verfaellie M, Cermak L S
Memory Disorders Research Center, Boston University School of Medicine, USA.
Neuropsychology. 1999 Apr;13(2):198-205. doi: 10.1037//0894-4105.13.2.198.
This study investigated the extent to which amnesic patients use fluency of perceptual identification as a cue for recognition. Perceptual fluency was measured by having participants gradually unmask words before making recognition judgments. In Experiment 1, familiarity was the only possible basis for recognition because no words had been presented in the study phase. In Experiment 2, recollection provided an alternative basis for recognition because words had appeared in the study phase. Amnesic patients were as likely as normal controls to use perceptual fluency as a cue for recognition in Experiment 1 but were more likely than controls to do so in Experiment 2. For both groups, perceptual fluency affected judgments for studied and unstudied items to the same extent in Experiment 2. These findings suggest that amnesic patients do use perceptual fluency cues, but reliance on perceptual fluency does not necessarily elevate recognition accuracy.
本研究调查了失忆症患者在多大程度上利用感知识别的流畅性作为识别线索。通过让参与者在做出识别判断之前逐渐揭开单词的遮罩来测量感知流畅性。在实验1中，熟悉度是识别的唯一可能基础，因为在学习阶段没有呈现任何单词。在实验2中，回忆为识别提供了另一种基础，因为单词在学习阶段出现过。在实验1中，失忆症患者与正常对照组一样有可能将感知流畅性用作识别线索，但在实验2中，失忆症患者比对照组更有可能这样做。对于两组来说，在实验2中，感知流畅性对学习过的和未学习过的项目的判断影响程度相同。这些发现表明，失忆症患者确实会使用感知流畅性线索，但对感知流畅性的依赖并不一定会提高识别准确性。
