长期暴露在高空对情节性记忆的影响:白天功能障碍的缓解作用
Getong Tao1, Hailin Ma2, Yanjie Su1
1School of Psychological and Cognitive Sciences, Beijing Key Laboratory of Behavior and Mental Health, Peking University, Beijing 100871, China.
Physiology & behavior
|September 27, 2024
概括
长期高空暴露会损害情节性记忆,特别是对象识别和空间源记忆. 白天功能障碍加剧了这些记忆缺陷,强调了高海拔地区睡眠质量的重要性.
科学领域:
- 神经科学是一个神经科学.
- 环境医学 环境医学
- 认知心理学 认知心理学
背景情况:
- 众所周知,长期暴露在高海拔低氧环境下会影响短期和工作记忆等认知功能.
- 长期高空暴露对长期情节性记忆 (包括项目和源记忆) 的影响仍然不太清楚.
研究的目的:
- 研究长期高空 (3650米) 暴露对情节性记忆 (项目和源记忆) 的影响.
- 检查白天功能障碍对高海拔暴露和情节性记忆之间的关系的缓解作用.
主要方法:
- 一项涉及97名参与者的比较研究:49名来自高海拔 (HA) 组 (从低海拔迁移) 和48名来自低海拔 (LA) 控制组.
- 用一个什么-什么时候-在哪里任务来评估情节性记忆.
- 使用匹兹堡睡眠质量指数测量白天功能障碍.
主要成果:
- 与LA组相比,HA组在项目记忆 (成功率和正确拒绝率) 中表现明显较低.
- 源绑定记忆在HA组中受损于什么-何处和什么-何时-何处的关联,但不是什么-何时的关联.
- 高海拔对物品记忆和空间源记忆的负面影响在白天功能障碍较大的个体中更为明显.
结论:
- 长期暴露于高海拔低氧环境会对情节性记忆产生负面影响,特别是对象识别和空间源记忆.
- 时间源记忆似乎不受慢性高空暴露的影响.
- 保持良好的白天功能和睡眠质量对于保持高海拔居民的情节性记忆至关重要.
更多相关视频
相关概念视频
Traumatic Memory
75
Emotionally traumatic events often lead to memories that are exceptionally vivid and enduring, sometimes persisting with remarkable clarity throughout an individual's life. A classic example of this phenomenon is a person who survives a car accident. Even years later, they may recall every detail of the event with startling accuracy — the screeching of the tires, the jarring impact, and the acrid smell of burning rubber. Such vividness contrasts sharply with how an individual...
75
Long-term Depression
2.5K
Long-term depression, or LTD, is one of the ways by which synaptic plasticity—changes in the strength of chemical synapses—can occur in the brain. LTD is the process of synaptic weakening that occurs over time between pre and postsynaptic neuronal connections. The synaptic weakening of LTD works in opposition to synaptic strengthening by long-term potentiation (LTP) and together are the main mechanisms that underlie learning and memory.
Calcium Ion Concentration Mechanism
If over...
Calcium Ion Concentration Mechanism
If over...
2.5K
Dissociative Amnesia
45
Dissociative amnesia is a complex psychological condition that manifests as an inability to recall personal information, often tied to traumatic or stressful events. Unlike general amnesia, individuals with this condition retain the ability to perform routine activities and procedural tasks, such as operating a phone or navigating public transportation, yet experience profound gaps in autobiographical memory. These lapses may encompass significant life events, such as suicide attempts or...
45
Higher Mental Functions of Brain: Learning and Memory
692
Memory is one of the most vital higher mental functions of the brain. Memory is closely related to learning because it enables us to retain information and experiences from our past to use them in our present life. It also helps us to remember facts, events, and skills, such as riding a bike or swimming. There are two types of memory — declarative memory, which involves memorizing facts or events, and procedural memory, which enables us to remember how to do something like writing or...
692
Post-traumatic Stress Disorder
30
Post-traumatic stress disorder (PTSD) is a psychiatric condition that arises following exposure to traumatic events such as natural disasters, forced displacement, or severe accidents. It significantly impairs individuals' ability to cope with daily activities and disrupts their emotional and psychological equilibrium.
Symptoms and Behavioral Manifestations
A spectrum of distressing symptoms characterizes PTSD. Recurrent flashbacks, where individuals involuntarily relive traumatic events,...
Symptoms and Behavioral Manifestations
A spectrum of distressing symptoms characterizes PTSD. Recurrent flashbacks, where individuals involuntarily relive traumatic events,...
30
Attention-Deficit/Hyperactivity Disorder
47
Attention-deficit/hyperactivity disorder (ADHD) is a neurodevelopmental disorder characterized by persistent inattention, hyperactivity, and impulsivity. It affects approximately 5-8% of children globally, with around 60-70% of cases persisting into adulthood. ADHD has significant implications for educational attainment, social interactions, and occupational success.
Diagnostic Criteria and Symptoms
To diagnose ADHD, symptoms must manifest before age 12 and be evident across multiple settings....
Diagnostic Criteria and Symptoms
To diagnose ADHD, symptoms must manifest before age 12 and be evident across multiple settings....
47


