False recollection of emotional pictures in Alzheimer's disease.
False recollection of emotional pictures in Alzheimer's disease.
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DOI：
10.1016/j.neuropsychologia.2010.08.011
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发表时间：
2010-10
期刊：
影响因子：
2.6
通讯作者：
Bennett DA
中科院分区：
文献类型：
--
作者：
Gallo DA;Foster KT;Wong JT;Bennett DA
阿尔茨海默病（AD）可以减少情绪内容对记忆的影响，但对错误记忆的了解较少。在健康的成年人中，情绪激动的图片比中性图片更容易受到错误记忆效应的影响，这可能是因为情绪图片具有导致记忆混乱的概念相似性。我们在AD患者和健康对照组中研究了这些效应。被试先学习图片及其文字标签，然后以文字标签为提取线索进行图片回忆测试。一些测试标签在研究中与图片相关联，而另一些则没有。在这个图片回忆测试中，我们发现AD患者和对照组都真诚地正确地认可了一些没有用图片研究过的测试标签。这些错误与中到高水平的信心有关，表明一定程度的错误回忆。重要的是，这些错误的回忆判断是更大的情感相比，中性项目，特别是积极valenced项目，在AD患者和对照组。AD早期杏仁核和海马区功能障碍可能损害记忆，但AD并没有破坏情绪对错误记忆判断的影响。
Alzheimer’s Disease (AD) can reduce the effects of emotional content on memory for studied pictures, but less is known about false memory. In healthy adults, emotionally arousing pictures can be more susceptible to false memory effects than neutral pictures, potentially because emotional pictures share conceptual similarities that cause memory confusions. We investigatedthese effects in AD patients and healthy controls. Participants studied pictures and their verbal labels, and then picture recollection was tested using verbal labels as retrieval cues. Some of the test labels had been associated with a picture at study, whereas other had not. On this picture recollection test, we found that both AD patients and controlsincorrectly endorsed some of the test labels that had not been studiedwith pictures. These errors were associated with medium to high levels of confidence, indicating some degree of false recollection. Critically, these false recollection judgments were greater for emotionalcompared to neutral items, especially for positively valenced items, in both AD patients and controls. Dysfunction of the amygdala and hippocampusin early AD may impairrecollection, but ADdid not disrupt the effect of emotion on false recollection judgments.
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