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相关概念视频

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Cognitive Development During Adulthood

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Cognitive development continues throughout adulthood, undergoing significant shifts across early, middle, and late stages. Individual transition occurs from adolescent idealism to pragmatic and adaptable thinking in early adulthood. During this period, individuals learn to integrate personal beliefs with the recognition that other perspectives are equally valid. Exposure to the complexities of modern society, diverse experiences, and higher education contribute to this adaptive thought process,...
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Aging01:26

Aging

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Aging is a complex biological phenomenon influenced by various processes that affect cellular and systemic functions. Several prominent theories attempt to explain its mechanisms, highlighting cellular limitations, oxidative damage, and hormonal changes as central factors in aging.
Cellular Clock Theory
The cellular clock theory posits that the human lifespan is closely tied to the finite capacity of cells to divide, a phenomenon governed by telomeres, which are protective caps at the ends of...
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Language and Cognition01:27

Language and Cognition

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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.
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Revisionist Views of Adolescent and Adult Cognition01:24

Revisionist Views of Adolescent and Adult Cognition

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A revisionist approach to Jean Piaget's theory of cognitive development has brought new insights that challenge and reinterpret his established ideas. Piaget proposed that the formal operational stage, emerging in adolescence, represents the culmination of cognitive maturity. During this stage, individuals are said to develop abstract thinking, engage in systematic problem-solving, and show a form of egocentrism, believing others are as preoccupied with their behavior as they are...
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Role of Cerebellum and Prefrontal Cortex in Memory

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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...
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Neuroplasticity reflects the brain's remarkable capacity to adapt and evolve, responding dynamically to learning, experiences, or injury by reorganizing its neural circuitry. This reorganization involves creating new neural connections and refining old ones through a series of biological processes that contribute to the brain's lifelong development and adaptability.
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相关实验视频

Updated: Jul 24, 2025

A Method for Investigating Age-related Differences in the Functional Connectivity of Cognitive Control Networks Associated with Dimensional Change Card Sort Performance
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认知对功能网络完整性的依赖随着年龄的增长而取决于结构网络完整性的条件.

Xulin Liu1, Lorraine K Tyler2, Cam-Can3

  • 1Department of Clinical Neurosciences, University of Cambridge, Cambridge, UK.

Neurobiology of aging
|July 1, 2023
PubMed
概括

大脑网络的完整性,特别是结构和功能连接之间的对齐,是维持终身认知功能的关键,特别是在老年人中. 这种大脑连接支持健康的衰老.

关键词:
衰老的衰老 衰老的衰老认知功能 认知功能认知维护 认知维护功能连接性的功能连接性.结构性的连接性 结构性的连接性

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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
  • 脑部成像 脑部成像

背景情况:

  • 认知功能对于终身福祉至关重要.
  • 大脑功能依赖于大脑网络内部和大脑网络之间的相互作用.
  • 白物质架构形成结构性大脑网络,影响功能网络.

研究的目的:

  • 研究功能和结构性大脑连接的融合以及它们之间的分歧如何影响成年人一生中的认知维护.
  • 为了确定大脑连接模式和认知概况之间的关系.
  • 了解衰老如何影响大脑对认知功能连接的依赖.

主要方法:

  • 利用多变量分析来检查功能结构连接性趋同与认知特征的分歧之间的联系.
  • 使用神经成像技术 (隐含) 评估大脑网络连接.
  • 分析了不同年龄组的认知表现.

主要成果:

  • 认知功能显示,随着年龄的增长,对功能结构连接性趋同的依赖性越来越大.
  • 这种依赖性在高阶皮质和皮质下网络中最为明显.
  • 由结构连接支持的大脑功能网络完整性,对于维持老年人的认知能力至关重要.

结论:

  • 大脑结构连接的完整性支着功能网络的完整性.
  • 大脑网络的完整性对于维持认知功能至关重要,特别是在晚年.
  • 与年龄相关的认知维护受到大脑结构和功能之间的对齐的影响.