环境丰富与老年人中有利的记忆相关的功能性大脑活动模式有关
Simon Hass1, Maxie Liebscher1, Anni Richter2,3,4
1German Center for Neurodegenerative Diseases (DZNE), Dresden, Germany.
Frontiers in aging neuroscience
|January 8, 2025
概括
在一生中从事各种休活动,称为环境丰富 (EE),与老年人更好的记忆功能有关. 早期和中年期更高的EE与保留的与记忆相关的大脑活动模式相关,即使在那些有痴呆症风险的人中也是如此.
科学领域:
- 神经科学是一个神经科学.
- 认知心理学 认知心理学
- 衰老研究研究 衰老研究
背景情况:
- 由各种休活动定义的环境丰富 (EE) 与增强的海马体结构和记忆有关.
- 以前的研究表明EE与认知功能之间存在联系.
- 这项研究调查了EE在不同生命阶段和老年人与记忆相关的大脑活动之间的关联.
研究的目的:
- 为了确定早期和中年期的环境丰富 (EE) 是否与老年人保留与记忆相关的大脑活动有关.
- 探索终身参与休活动与支持记忆的神经模式之间的关系.
- 为了评估这一关联在认知不受损的老年人队列中.
主要方法:
- 从DELCODE研究中调查了372名认知不受损的老年人 (≥60岁).
- 使用终身经验问卷 (LEQ) 对早期和中年进行环境丰富性 (EE) 评估.
- 使用功能性脑活动模式 (SAME分数) 测量了与视觉记忆编码过程中的年轻成年人相比,与记忆相关的大脑活动的保存.
主要成果:
- 早期和中年期更高的EE与新奇处理期间更高的SAME分数显著相关 (p=0.011).
- 具有较大的EE的老年人表现出功能性大脑活动模式与年轻人更相似.
- 这种关联在报告主观认知衰退 (SCD) 的个体中最强.
结论:
- 越来越多的人在一生中参与各种休活动,与记忆网络功能更成功的衰老有关.
- 这种关联适用于老年人,包括那些患有痴呆症风险增加的人.
- 需要进一步的纵向研究来确定因果关系和EE在维护记忆网络功能的潜力.
相关概念视频
01:30Cognitive Development During Adulthood
50
Cognitive development continues throughout adulthood, undergoing significant shifts across early, middle, and late stages. Individual transition occurs from adolescent idealism to pragmatic and adaptable thinking in early adulthood. During this period, individuals learn to integrate personal beliefs with the recognition that other perspectives are equally valid. Exposure to the complexities of modern society, diverse experiences, and higher education contribute to this adaptive thought process,...
50
01:30Cognitive Enhancers: Cholinesterase Inhibitors and NMDA Receptor Antagonists
95
Cognitive enhancers, also known as "smart drugs," are substances used to enhance memory, mental alertness, and concentration. These can be natural or synthetic and improve cognition in conditions like Alzheimer's disease (AD) and other neurodegenerative diseases. Some common examples include caffeine, amphetamines, methylphenidate, modafinil, arecoline, donepezil, vortioxetine, and piracetam. These enhancers work on the principle of synaptic plasticity and altered circuit function.
95
01:23Role of Neurotransmitters in Memory
420
Neurotransmitters are integral to the brain's communication system, enabling neurons to transmit signals across synapses. This chemical exchange underpins various cognitive functions, including memory processes. The role of neurotransmitters in memory is multifaceted, influencing the encoding, consolidation, and retrieval of memories through their action on different neural circuits.
Glutamate and Synaptic Plasticity
Glutamate, the brain's main excitatory neurotransmitter, is...
Glutamate and Synaptic Plasticity
Glutamate, the brain's main excitatory neurotransmitter, is...
420
01:14Role of Cerebellum and Prefrontal Cortex in Memory
361
The cerebellum, while traditionally associated with motor control, also plays a crucial role in memory, particularly in procedural memory, which involves learning motor tasks that become automatic through repetition. For example, studies have shown that when the cerebellum is damaged, individuals or animals lose the ability to learn conditioned motor responses, such as the conditioned eye-blink response in classical conditioning experiments with rabbits. This study demonstrates the...
361
01:07Elaborative Rehearsals
77
Elaborative rehearsal is a crucial cognitive strategy that strengthens information encoding in long-term memory by making meaningful connections between new data and pre-existing knowledge. This approach contrasts with maintenance rehearsal, which involves simple repetition without delving into the significance of the information. While maintenance rehearsal might temporarily keep information active in short-term memory, it is less effective for long-term retention.
The effectiveness of...
The effectiveness of...
77