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相关概念视频

Language and Cognition01:27

Language and Cognition

346
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.
346
Lateralization01:28

Lateralization

336
Brain lateralization refers to the division of mental processes and functions between the two hemispheres of the brain, a phenomenon that optimizes neural efficiency and underpins complex abilities in humans. This specialization allows each hemisphere to perform tasks where it has a comparative advantage, facilitating more refined cognitive capabilities across different domains.
336
Association Areas of the Cortex01:21

Association Areas of the Cortex

5.4K
Association areas are regions of the cerebral cortex that do not have a specific sensory or motor function. Instead, they integrate and interpret information from various sources to enable higher cognitive processes such as memory, learning, and decision-making. Some key association areas include the following:
Prefrontal Association Area: This area is located in the frontal lobe and is involved in planning, decision-making, and moderating social behavior. It connects with primary motor areas,...
5.4K
Higher Mental Functions of the Brain: Language01:10

Higher Mental Functions of the Brain: Language

859
Language is a system of communication that allows the expression of thoughts, ideas, and feelings. The brain processes language in both hemispheres.
Language formation and comprehension take place in the dominant hemisphere. The dominant hemisphere is responsible for understanding the meaning of spoken, written, or sign language, as well as the ability to communicate. For most people, the left hemisphere is the dominant one. The right hemisphere, then, gives tone and emotional context to the...
859
Cerebral Hemispheres01:05

Cerebral Hemispheres

345
The human brain, a complex organ, is functionally divided into two cerebral hemispheres—left and right. These hemispheres are interconnected by a structure of paramount importance, the corpus callosum. This substantial bundle of neural fibers is not just a bridge between the hemispheres but a crucial element for the brain's comprehensive functioning. It enables efficient communication between the two hemispheres, allowing each side of the brain to control and receive sensory and motor...
345
Motor and Sensory Areas of the Cortex01:14

Motor and Sensory Areas of the Cortex

3.9K
The cerebral cortex, the brain's outermost layer, is pivotal in processing complex cognitive tasks, emotions, and various sensory inputs and executing voluntary motor activities. This intricate structure is divided into three primary functional areas: the motor areas, sensory areas, and association areas.
Motor Areas
The motor areas located in the frontal lobe are central to controlling voluntary movements. This region is further subdivided into the primary motor cortex and the premotor cortex....
3.9K

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相关实验视频

Updated: Jul 5, 2025

Evaluation of Hemisphere Lateralization with Bilateral Local Field Potential Recording in Secondary Motor Cortex of Mice
07:03

Evaluation of Hemisphere Lateralization with Bilateral Local Field Potential Recording in Secondary Motor Cortex of Mice

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听觉皮层不对称性与语言和认知的个体差异的关联.

Mark A Eckert1, Kenneth I Vaden1, Silvia Paracchini2

  • 1Department of Otolaryngology-Head and Neck Surgery, Medical University of South Carolina, Charleston, SC 29425, USA.

Brain sciences
|January 22, 2024
PubMed
概括

被破坏的向左听力皮层不对称性可能会影响儿童的阅读能力. 这项研究发现,这种大脑横向化假设得到了适度的支持,其中一些影响特定于男孩.

科学领域:

  • 神经科学是一个神经科学.
  • 发展心理学 发展心理学
  • 认知科学 认知科学

背景情况:

  • 大脑横向化假设表明,非典型的听觉皮层不对称性会影响阅读的发展.
  • 以前的研究由于样本大小小,效果大小小,以及潜在的性别特异性影响而产生了不一致的结果.

研究的目的:

  • 调查大队伍中听觉皮层表面积不对称与语言技能之间的关联.
  • 测试关于儿童阅读发展的大脑横向化假设,检查性别特异性影响.

主要方法:

  • 在基线使用了大型ABCD研究数据集 (N = 11,859).
  • 分析了听觉皮层表面积不对称性和感受词汇表现之间的关系.
  • 检查了口头文字阅读表现,特别寻找性别特异性的影响.

主要成果:

  • 发现对大脑横向化假设的适度支持 (科恩的d效应大小≤0.10).
  • 观察到听觉皮层不对称性和不同性别的感受词汇之间的关联.
  • 鉴定了一种口头文字阅读效应,这种效应特别适用于男孩.

结论:

  • 这些发现为长期以来在阅读发展中的大脑横向化假设提供了有限的证据.
关键词:
大脑侧向化是大脑的侧向化.语言障碍 语言障碍平面时间不对称.阅读障碍 阅读障碍 阅读障碍

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  • 性别特异性影响可能在大脑结构和阅读能力之间的关系中起作用.
  • 较大的数据集证实了听力皮层不对称性和语言技能之间的微妙联系.