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相关概念视频

Explicit Memories01:27

Explicit Memories

408
Explicit memories, also known as declarative memories, are consciously remembered, recalled, and reported. Studying for a chemistry exam involves material that will become part of explicit memory. There are two types of explicit memory: episodic and semantic.
Episodic memory contains information about personally experienced events and is reported as a story. An example of episodic memory is recalling a birthday celebration. This type of memory includes the what, where, and when of an event, as...
408
Role of Hippocampus in Memory01:19

Role of Hippocampus in Memory

1.4K
The hippocampus, a critical brain structure, plays an essential role in memory processing, particularly in the formation and retrieval of memory. This small, seahorse-shaped region is located within the medial temporal lobe, with one hippocampus in each brain hemisphere. Experimental studies involving lesions in the hippocampi of rats have demonstrated significant impairments in tasks such as object recognition and maze navigation, indicating the hippocampus involvement in both recognition and...
1.4K
Storage01:23

Storage

341
A schema is a mental framework that helps individuals organize and interpret information. Schemata, formed from previous experiences, influence how we process new information: how we encode it, the inferences we make, and how we retrieve it. For instance, a schema for what a typical classroom looks like might include desks, a teacher's desk, a whiteboard, and students in such an environment. This expectation helps us quickly understand and navigate new classrooms without needing to analyze...
341
Long-Term Memory01:18

Long-Term Memory

614
Long-term memory is a relatively permanent type of memory, capable of storing vast amounts of information over extended periods. Its storage capacity is generally considered unlimited.
Long-term memory can be categorized into two primary types: explicit and implicit memory. Explicit memory, also known as declarative memory, involves the conscious recollection of information that we deliberately try to remember, recall, and articulate. This type of memory encompasses specific facts, events, and...
614
Working Memory01:24

Working Memory

772
Working memory refers to a combination of components, including short-term memory and attention, that allow an individual to hold information temporarily as we perform cognitive tasks. It is an essential cognitive function that enables the execution of complex tasks such as problem-solving, comprehension, and reasoning. Unlike short-term memory, which simply involves the storage of information for a brief period, working memory involves the active manipulation and processing of this...
772
Traumatic Memory01:20

Traumatic Memory

519
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...
519

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相关实验视频

Updated: Jan 10, 2026

A Real-world What-Where-When Memory Test
09:13

A Real-world What-Where-When Memory Test

Published on: May 16, 2017

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在情节性记忆中的空间和时间背景之间的神经生理学区别.

César Torres-Morales1, Selene Cansino1

  • 1Laboratory of NeuroCognition, Faculty of Psychology, National Autonomous University of México, Mexico City, Mexico.

International journal of psychophysiology : official journal of the International Organization of Psychophysiology
|November 27, 2025
PubMed
概括
此摘要是机器生成的。

这项研究揭示了情节性记忆中空间和时间背景的独特大脑活动模式. 空间上下文检索优越,而时间上下文需要更多的编码和不同的检索策略.

关键词:
编码 编码 编码情节性记忆是一种情节性记忆.与事件相关的潜力与事件相关的潜力检索检索可以检索.空间上下文 空间上下文时间上下文时间上下文

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Examining the Characteristics of Episodic Memory using Event-related Potentials in Patients with Alzheimer's Disease
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Author Spotlight: Investigating the Effects of Mind-Body-Movement Practices on Brain Function
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相关实验视频

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Examining the Characteristics of Episodic Memory using Event-related Potentials in Patients with Alzheimer's Disease
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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
  • 电子生理学 电子生理学

背景情况:

  • 情节性记忆包括在特定的空间和时间背景下回忆个人经历.
  • 以前的研究使用单细胞记录和fMRI来显示空间和时间背景的脑活动差异.
  • 像事件相关潜力 (ERP) 这样的电生理学方法还没有被用来一起检查这些区别.

研究的目的:

  • 在记忆编码和检索过程中,研究空间和时间背景之间的电生理活动差异.
  • 利用ERP来检查与空间和时间上下文记忆相关的神经群体活动.

主要方法:

  • 记录了30名参与者执行关联图像配对任务的ERP.
  • 参与者编码了连续的图像对.
  • 在检索过程中,参与者可以区分空间,时间,相同或新的图像对.

主要成果:

  • 对于空间上下文的检索精度高于对时间上下文的检索精度.
  • 在编码过程中,前部缓慢波显示了对时间上下文的记忆效应.
  • FN400 ERP组件与时间上下文回忆相关,而平面旧/新效应与空间上下文回忆相关.

结论:

  • 在记忆编码和检索过程中,大脑在空间和时间上下文的处理方式不同.
  • 与空间上下文记忆相比,时间上下文记忆需要更密集的编码策略和更清晰的区分,从熟悉的检索到空间上下文记忆.
  • 电生理学分析揭示了空间和时间上下文记忆的独特神经特征.