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相关概念视频

Working Memory01:24

Working Memory

101
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...
101
Information Processing Approach01:30

Information Processing Approach

23
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...
23
Role of Cerebellum and Prefrontal Cortex in Memory01:14

Role of Cerebellum and Prefrontal Cortex in Memory

288
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...
288
Storage01:23

Storage

57
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...
57
Higher Mental Functions of Brain: Learning and Memory01:26

Higher Mental Functions of Brain: Learning and Memory

599
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...
599
Elaborative Rehearsals01:07

Elaborative Rehearsals

70
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...
70

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Updated: May 20, 2025

Assessing Working Memory in Children: The Comprehensive Assessment Battery for Children – Working Memory (CABC-WM)
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集群式工作内存更新及其计算规则

Wei Chen1, Wenwen Li1, Xiaowei Ding1

  • 1Department of Psychology, Sun Yat-sen University.

Psychological review
|May 19, 2025
PubMed
概括
此摘要是机器生成的。

在更新过程中,工作内存项被表示为动态组合,而不是独立的. 这个集合假设解释了记忆更新如何与整体刺激组的变化保持一致,挑战了先前的假设.

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科学领域:

  • 认知心理学 认知心理学
  • 神经科学是一个神经科学.
  • 计算建模 计算建模

背景情况:

  • 工作记忆操纵对于认知功能至关重要.
  • 之前的模型在操纵过程中经常假设独立的项目表示.
  • 一个新的观点,集合假设,表明项目是集体表示.

研究的目的:

  • 在工作记忆更新中测试独立对集体表示假设.
  • 在内存更新期间调查集合计算的机制.
  • 量化项目添加和删除的更新动态.

主要方法:

  • 进行了三个延迟估计任务,以评估不同情景下的工作记忆更新 (添加,删除,替换).
  • 系统地操纵记忆刺激的平均方向被用来区分假设.
  • 开发了一个计算模型来分析对记忆更新的集合贡献.

主要成果:

  • 结果支持集体假设,显示与集体变化方向对齐的记忆错误.
  • 添加导致内存项的完整更新.
  • 删除导致不完整的更新,表明集体内的差异处理.

结论:

  • 工作内存中的项目在更新过程中以动态组合的形式表示.
  • 这项研究阐明了管理集合更新的计算原则.
  • 这些发现挑战了工作记忆研究中传统的独立表示假设.