在健康的衰老中,语义上类似的口头记忆痕迹的歧视受到影响
Alex Ilyés1,2,3, Borbála Paulik4, Attila Keresztes5,4
1Doctoral School of Psychology, ELTE Eötvös Loránd University, Budapest, Hungary. ilyes.alex@ttk.hu.
Scientific reports
|August 2, 2024
概括
健康的衰老会损害记忆的区分,特别是对于语义上相似的单词. 与年轻人相比,老年人表现出较低的情节性特异性,这表明记忆力下降影响了口头信息.
科学领域:
- 认知神经科学 认知神经科学
- 神经心理学 神经心理学
- 人类衰老研究研究
背景情况:
- 记忆特异性至关重要的记忆学歧视,依赖于海马的模式分离.
- 衰老对模式分离产生负面影响,导致情节性特异性降低.
- 以前的研究集中在视觉空间刺激上,使得口头记忆和衰老不太被探索.
研究的目的:
- 调查语义上类似的口头刺激的记忆歧视中的与年龄相关的差异.
- 评估语义相似性如何影响年轻人和老年人的记忆特异性.
- 为了确定在衰老的背景下,记忆力歧视是否是模式独立的.
主要方法:
- 开发了一项新的任务,评估基于使用词嵌入的语义相似性对口头刺激的记忆歧视.
- 招募了40名年轻人和40名老年人,用于偶尔编码形容词名词短语.
- 用重复和类似的诱惑短语进行惊喜识别测试.
主要成果:
- 语义相似性的增加使得年轻人和老年人的记忆歧视受损.
- 年长的成年人在中等语义相似程度上表现出明显更糟糕的歧视比年轻的成年人.
- 研究结果表明,衰老会影响口头记忆痕迹的情节性特异性.
结论:
- 语义上相似的记忆痕迹的情节特异性因老化而受到损害,因为记忆操作效率较低.
- 记忆区分是一种独立于模式的过程,支持跨不同表示领域的记忆特异性.
- 这项研究强调了衰老对口头记忆的影响,并支持模式分离在保持记忆特异性的作用.
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