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相关概念视频

Working Memory01:24

Working Memory

165
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...
165
Information Processing Approach01:30

Information Processing Approach

37
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...
37
Language and Cognition01:27

Language and Cognition

345
Language serves as a bridge between ideas and communication, influencing how individuals perceive and interact with the world. Psychologists have long debated whether language shapes thought or vice versa. This discussion gained grip with Edward Sapir and Benjamin Lee Whorf in the 1940s, who proposed that language determines thought, a concept known as linguistic determinism. They suggested that the vocabulary and structure of a language influence how its speakers think and perceive reality.
345
Higher Mental Functions of Brain: Learning and Memory01:26

Higher Mental Functions of Brain: Learning and Memory

773
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...
773
Cognitive Learning01:21

Cognitive Learning

240
Cognitive learning is based on purposive behavior, incidental learning, and insight learning.
E. C. Tolman's theory of purposive behavior emphasizes that much behavior is goal-directed. He argued that to understand behavior, we must look at the entire sequence of actions leading to a goal. For instance, high school students study hard, not just due to past reinforcement but also to achieve the goal of getting into a good college.
Tolman introduced the idea that behavior is influenced by...
240
Interference and Decay01:16

Interference and Decay

140
Forgetting is a complex cognitive phenomenon influenced by several factors, among which interference and decay are particularly prominent. These processes explain why individuals often struggle to retrieve specific information from memory, leading to lapses in recall that can be observed in everyday situations.
Interference occurs when competing memories hinder the retrieval of particular information. It can be classified into two types: proactive and retroactive interference. Proactive...
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相关实验视频

Updated: Jul 2, 2025

A Cognitive Paradigm to Investigate Interference in Working Memory by Distractions and Interruptions
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在各种认知环境中探索学习和工作记忆之间的动态相互作用.

Zakieh Hassanzadeh1, Fariba Bahrami2, Fariborz Dortaj1

  • 1Faculty of Psychology and Educational Sciences, Allameh Tabataba'i University, Tehran, Iran.

Frontiers in behavioral neuroscience
|February 29, 2024
PubMed
概括

工作记忆和强化学习随着年龄的增长而下降,影响认知任务. 计算模型揭示了不同年龄组和认知状态之间的学习率和决策噪声的差异.

关键词:
这就是MoCA MoCA.在 RLWM 模型中,衰老的衰老 衰老的衰老强化学习是一种强化学习.工作记忆 工作记忆

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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: Jul 2, 2025

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科学领域:

  • 神经科学是一个神经科学.
  • 认知科学 认知科学
  • 计算神经科学是一种神经科学.

背景情况:

  • 强化学习 (RL) 和工作记忆 (WM) 之间的相互作用对认知功能至关重要.
  • 了解这些系统如何相互作用是解释任务性能和认知衰退的关键.
  • 以前的研究集中在单个系统或它们在特定任务中的联合作用上.

研究的目的:

  • 使用RLWM框架计算模拟RL和WM之间的关系.
  • 分析年龄和认知状态如何影响RLWM任务中的行为参数.
  • 识别与认知衰老和损伤相关的特定神经和行为标记.

主要方法:

  • 利用RLWM计算模型来分析行为数据.
  • 在不同年龄组 (年轻人,中年人) 中评估受试者.
  • 使用蒙特利尔认知评估 (MoCA) 工具测量认知状态.

主要成果:

  • 性能准确性和速度随着年龄的增长而下降.
  • 在不同年龄组的学习率,脑力衰减和决策噪音中发现了显著的差异.
  • 与认知正常个体相比,中年轻度认知障碍 (MCI) 个体在速度,准确性和决策噪音方面表现出明显的模式.

结论:

  • 与年龄相关的认知衰退影响了强化学习和工作记忆过程.
  • RLWM模型有效地捕捉了与衰老和认知状态相关的行为差异.
  • 决策噪声成为区分正常老化和MCI的一个关键参数.