ABSTRACT

Imagining an event from a personal perspective has been found to be able to enhance memory for words and sentences for healthy younger adults and brain-injured patients. However, little is known about how people with amnestic mild cognitive impairment (aMCI) respond to self-imagination, in comparison to healthy older adults. In the current study, participants were asked to process a group of objects using either a self-imagination approach or a baseline strategy in which the self was not heavily involved. Self-imagination shows a mnemonic advantage over the control strategy, though this pattern emerged more clearly for healthy older adults. Furthermore, suggestive evidence indicates that cognitive ability supports self-reference benefits for healthy older adults, but not aMCI patients. These findings extended previous research to reveal the effectiveness of self-imagination for older adults using pictorial stimuli and supported the viewpoint that aMCI could qualitatively change the way that cognitive resources are engaged.

 抽象的

人们发现，从个人角度想象一个事件能够增强健康年轻人和脑损伤患者对单词和句子的记忆。然而，与健康老年人相比，遗忘性轻度认知障碍（aMCI）患者如何应对自我想象，人们知之甚少。在当前的研究中，参与者被要求使用自我想象方法或自我没有大量参与的基线策略来处理一组物体。自我想象比控制策略显示出记忆优势，尽管这种模式对于健康的老年人来说表现得更明显。此外，提示性证据表明，认知能力支持健康老年人的自我参照益处，但 aMCI 患者则不然。这些发现扩展了之前的研究，揭示了老年人使用图片刺激进行自我想象的有效性，并支持了 aMCI 可以从质上改变认知资源利用方式的观点。