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相关概念视频

Lateralization01:28

Lateralization

294
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.
294
Higher Mental Functions of the Brain: Language01:10

Higher Mental Functions of the Brain: Language

702
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...
702
Cerebral Hemispheres01:05

Cerebral Hemispheres

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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...
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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.
303

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在手语处理中的功能和结构大脑不对称性.

Patrick C Trettenbrein1, Emiliano Zaccarella2, Angela D Friederici2

  • 1Department of Neuropsychology, Max Planck Institute for Human Cognitive and Brain Sciences, Leipzig, Germany; International Max Planck Research School on Neuroscience of Communication: Structure, Function, and Plasticity (IMPRS NeuroCom), Leipzig, Germany; Experimental Sign Language Laboratory (SignLab), Department of German Philology, University of Göttingen, Göttingen, Germany.

Handbook of clinical neurology
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PubMed
概括
此摘要是机器生成的。

大脑中的手语处理在很大程度上反映了口语,左半球占主导地位. 然而,右半球在处理手语特征方面发挥着独特的作用,突出显示了大脑的可塑性.

关键词:
语言网络语言网络侧面化是一种侧面化.语言使用的模式.模式独立性 模式独立性语言的神经生物学标记语言 标记语言是指手语.处理手语的手语处理.

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科学领域:

  • 认知神经科学 认知神经科学
  • 语言学的语言学.
  • 神经生物学 神经生物学 神经生物学

背景情况:

  • 语言是一种定义人类特征,不仅限于言语.
  • 手语是聋人社区使用的自然语言,依赖于视觉手势模式.
  • 神经成像研究调查了手势语言的大脑基础.

研究的目的:

  • 审查手语处理的神经基质.
  • 在手语中检查功能和结构性大脑组织.
  • 将手语处理与大脑中的口语/书面语言进行比较.

主要方法:

  • 对神经成像研究结果的审查.
  • 功能和结构大脑组织的分析.
  • 左半球与右半球参与手语的比较.

主要成果:

  • 手语处理主要是左侧化,类似于口语.
  • 右半球表现出同潜力,并支持独特的签名模式构造.
  • 左半球的核心语言网络对于复杂的语法至关重要,独立于模式.

结论:

  • 人类大脑在语言处理方面表现出了显著的可塑性.
  • 左半球核心语言网络对于复杂的语法至关重要,这表明它具有进化意义.
  • 了解手语神经基础,可以了解人类语言能力的演变.