记忆:遇见新的Engram,就像旧的Engram一样.
Asim J Rashid1, Ali Golbabaei2, Sheena A Josselyn2
1Program in Neurosciences and Mental Health, Hospital for Sick Children, Toronto, ON M5G 1X8, Canada.
Current biology : CB
|September 26, 2023
概括
一项新的研究表明,记忆检索依赖于海马体CA1区域的一致的神经合奏. 这个核心群体对于回忆是必不可少的,即使其他大脑区域随着时间的推移变得更加参与其中.
科学领域:
- 神经科学是一个神经科学.
- 记忆研究 记忆研究
- 系统神经科学 系统神经科学
背景情况:
- 记忆回忆涉及复杂的神经过程.
- 大脑对记忆的组织随着时间的推移而演变.
- 海马在记忆形成和回忆中起着至关重要的作用.
研究的目的:
- 为了研究底层记忆检索的神经元组合的稳定性.
- 确定核心神经元件是否对于近期和远程记忆回忆是必要的.
- 了解随着时间的推移,大脑中的记忆表现如何变化.
主要方法:
- 使用先进的神经成像技术观察神经活动.
- 分析与记忆回忆相关的神经元组织的变化.
- 采用技术来识别和跟踪特定的神经元组合.
主要成果:
- 这项研究在背部海马体的CA1区域发现了一个稳定的核心神经元组合.
- 这种海马体组合被发现是检索最近和远程记忆的必要条件.
- 神经组织显示随着时间的推移发生了变化,皮层参与度增加.
结论:
- 在CA1海马中保留的神经元组合对于记忆检索至关重要.
- 尽管整体记忆组织的时间变化,这个核心海马网络仍然是必不可少的.
- 这些发现凸显了特定海马回路对长期记忆回忆的持久重要性.
相关概念视频
Understanding Memory
358
Memory is the retention of information or experiences over time, facilitated through three main processes: encoding, storage, and retrieval. Encoding is the process of inputting information into the memory system. For instance, when listening to a lecture, watching a play, reading a book, or having a conversation, the brain is actively encoding information. This initial stage involves transforming sensory input into a form that can be processed and stored by the brain. Various factors, such as...
358
Storage
98
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...
98
Higher Mental Functions of Brain: Learning and Memory
861
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...
861
Long-Term Memory
191
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...
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...
191
Mnemonic Devices
98
Mnemonic devices are cognitive tools that facilitate memory retention by linking new information to familiar patterns or organizational strategies. These techniques are beneficial for remembering complex or lengthy sets of information by simplifying and structuring them in easily retrievable ways.
Acronyms
Acronyms are created by using the initial letters of a series of words to form a new word or phrase. This approach condenses complex information into a single, memorable entity. For example,...
Acronyms
Acronyms are created by using the initial letters of a series of words to form a new word or phrase. This approach condenses complex information into a single, memorable entity. For example,...
98
System of Memory
6.1K
Memory is categorized into three major systems: sensory memory, short-term memory (STM), and long-term memory (LTM). These systems differ in their capacity and the duration for which they can hold information. Sensory memory captures raw sensory input from the environment, holding it for just a few seconds or less. For example, on hearing a brief, loud sound, like a car horn honking, the sound seems to linger in the mind for a moment even after it stops. This is an instance of sensory memory...
6.1K


