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相关概念视频

Working Memory01:24

Working Memory

137
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...
137
Role of Cerebellum and Prefrontal Cortex in Memory01:14

Role of Cerebellum and Prefrontal Cortex in Memory

375
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...
375
Information Processing Approach01:30

Information Processing Approach

30
The information-processing theory of cognitive development centers on fundamental mental processes, including attention, memory, and problem-solving skills. Researchers in this field examine how cognitive abilities, such as working memory, evolve and influence children's overall development. Studies indicate that children with stronger working memory tend to excel in reading comprehension, math, and problem-solving compared to peers with less efficient memory skills. Low working memory is...
30
Lobes of the Cerebrum01:22

Lobes of the Cerebrum

560
The cerebral cortex, a critical structure of the brain, is intricately divided into two hemispheres, each consisting of four distinct lobes: occipital, temporal, frontal, and parietal. These lobes function cooperatively to regulate various cognitive and sensory functions, forming the basis of our complex neural capabilities.
Frontal lobe
The frontal lobes, located behind the forehead, are the command center of our brain, controlling personality, intelligence, and voluntary muscle movements....
560
High-Level and Low-Level Awareness01:19

High-Level and Low-Level Awareness

248
Controlled processes in human consciousness represent high-alert mental states where individuals deliberately focus their attention on achieving specific goals. Controlled processes can be seen in situations like mastering new technology, where a person might become so absorbed that they ignore surrounding distractions. Such processes involve selective attention, requiring one to concentrate on particular elements of experience while disregarding others. These are governed by executive...
248
Higher Mental Functions of Brain: Learning and Memory01:26

Higher Mental Functions of Brain: Learning and Memory

685
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...
685

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相关实验视频

Updated: Jun 8, 2025

A Cognitive Paradigm to Investigate Interference in Working Memory by Distractions and Interruptions
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A Cognitive Paradigm to Investigate Interference in Working Memory by Distractions and Interruptions

Published on: July 16, 2015

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优先考虑工作记忆资源取决于前额叶皮层.

Grace E Hallenbeck1, Nathan Tardiff1, Thomas C Sprague1,2

  • 1Department of Psychology, New York University.

bioRxiv : the preprint server for biology
|November 1, 2024
PubMed
概括
此摘要是机器生成的。

前额叶皮质控制工作记忆资源的分配,而不仅仅是存储. 破坏这种控制可以改善低优先级项目的内存,支持资源分配模型.

更多相关视频

Working Memory Training for Older Participants: A Control Group Training Regimen and Initial Intellectual Functioning Assessment
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相关实验视频

Last Updated: Jun 8, 2025

A Cognitive Paradigm to Investigate Interference in Working Memory by Distractions and Interruptions
10:38

A Cognitive Paradigm to Investigate Interference in Working Memory by Distractions and Interruptions

Published on: July 16, 2015

13.6K
Working Memory Training for Older Participants: A Control Group Training Regimen and Initial Intellectual Functioning Assessment
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Assessing Working Memory in Children: The Comprehensive Assessment Battery for Children – Working Memory (CABC-WM)
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科学领域:

  • 认知神经科学 认知神经科学
  • 神经生物学 神经生物学 神经生物学

背景情况:

  • 前额叶皮质在工作记忆中的确切作用受到争论,理论集中在记忆存储与内容控制上.
  • 了解这种区别对于推进认知神经科学和开发有针对性的干预措施至关重要.

研究的目的:

  • 调查前额叶皮质主要是存储工作记忆还是控制其优先级.
  • 在工作记忆中区分内存存储和资源分配模型的前额叶皮质功能.

主要方法:

  • 利用跨磁刺激 (TMS) 来扰乱人类参与者 (两性) 的侧面前额皮质.
  • 采用工作记忆任务,需要对记忆项进行行为优先排序.
  • 开发了一个计算模型来预测控制中断对记忆性能的影响.

主要成果:

  • 上部前中心的TMS,但不是内侧,破坏了资源优先级.
  • 这种干扰导致了对低优先级项目的内存的反直觉改进,与模型预测保持一致.
  • 证明了前额叶皮质控制和工作记忆资源分配之间的因果关系.

结论:

  • 前额叶皮质积极控制支持工作记忆的认知资源的分配.
  • 这些发现支持了强调前额叶皮质在动态资源管理中的作用,而不是被动记忆存储的模型.
  • 为工作记忆中前额叶皮层功能资源分配理论提供因果关系证据.