Eastern Washington University, Cheney, WA, USA.
J Clin Exp Neuropsychol. 2010 Jun;32(5):505-14. doi: 10.1080/13803390903224944. Epub 2009 Oct 9.
This study examined both retrospective and prospective memory self-monitoring abilities in 33 individuals with amnestic mild cognitive impairment (MCI) and 33 healthy older adult controls. Participants learned 36 critical cue-target word pairs. Following a distractor task, participants were asked to recall each target word that corresponded to a given cue word. Confidence ratings were provided for recalled words. For nonrecalled words, feeling-of-knowing judgments about the likelihood of recognizing the target word on a subsequent recognition test were provided. We found that despite poorer episodic memory performance, the MCI individuals demonstrated accurate retrospective self-monitoring of recalled episodic material. In contrast, the MCI participants were less accurate than controls prospectively self-monitoring their memory for newly learned information. These findings suggest that memory self-monitoring is not a unitary construct and that amnestic MCI participants have difficulty with prospective memory self-monitoring abilities.
本研究考察了 33 名遗忘型轻度认知障碍 (MCI) 患者和 33 名健康老年对照组个体的回溯和前瞻记忆自我监测能力。参与者学习了 36 对关键线索-目标词对。在分心任务之后，要求参与者回忆与给定线索词相对应的每个目标词。对回忆出的单词提供了置信度评分。对于未被回忆出的单词，对在随后的识别测试中识别目标单词的可能性提供了知道感判断。我们发现，尽管情节记忆表现较差，但 MCI 个体对回忆出的情节材料表现出准确的回溯自我监测。相比之下，MCI 参与者在预测新学习信息的记忆时不如对照组准确。这些发现表明，记忆自我监测不是一个单一的结构，遗忘型 MCI 参与者在预测性记忆自我监测能力方面存在困难。
