Abstract

Objectives

To understand the differences in affective memory performance under different degrees of cognitive impairment, this study recruited older people with different degrees of cognitive impairment, to perform emotion recognition memory tasks.

Methods

Fifty-four elderly participants aged (65-85 years) were recruited. Of these, 18 had mild cognitive impairment, 18 had a mild form of Alzheimer’s disease, and the remaining 18 were healthy. Factors such as the different emotional valences (positive, neutral, or negative) and stimulus types (pictures, words, or sounds) were manipulated to explore their influences on the emotion recognition memory of people with different degrees of cognitive impairment.

Results

The results showed that people’s performance to positive stimuli worsened as their degree of cognitive impairment increased. All participants had difficulty processing memory of affective sound stimuli compared to the other two stimulus types.

Conclusions

The results explain the decline in the cognitive ability process, in affective memory performance, of people with different degrees of cognitive impairment. This abnormal decline on affective memory performance could be an early diagnostic indicator of Alzheimer’s disease. The results can hopefully be used as a reference for subsequent research on cognition-related diseases and age-related decline, especially regarding affective memory.

中文翻译：

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刺激类型对不同严重程度认知障碍患者情感记忆的影响

摘要

目标

为了了解不同程度认知障碍下情感记忆表现的差异，本研究招募了不同程度认知障碍的老年人，执行情绪识别记忆任务。

方法

招募了 54 名年龄（65-85 岁）的老年参与者。其中，18 人患有轻度认知障碍，18 人患有轻度阿尔茨海默病，其余 18 人健康。操纵不同情绪效价（积极、中性或消极）和刺激类型（图片、文字或声音）等因素，探索它们对不同程度认知障碍患者情绪识别记忆的影响。

结果

结果表明，随着认知障碍程度的增加，人们对积极刺激的表现也会恶化。与其他两种刺激类型相比，所有参与者都难以处理情感声音刺激的记忆。

结论

结果解释了具有不同程度认知障碍的人的认知能力过程和情感记忆表现的下降。这种情感记忆表现的异常下降可能是阿尔茨海默病的早期诊断指标。该结果有望为后续认知相关疾病和年龄相关衰退，特别是情感记忆方面的研究提供参考。