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Higher Mental Functions of the Brain: Language01:10

Higher Mental Functions of the Brain: Language

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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...
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Language and Cognition01:27

Language and Cognition

441
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.
441
Lateralization01:28

Lateralization

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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.
481
Components of Language01:24

Components of Language

392
Language, whether spoken, signed, or written, consists of specific components: lexicon and grammar. The lexicon is the vocabulary of a language, comprising its words. Grammar is the set of rules used to convey meaning through the lexicon. For example, English grammar adds “-ed” to most verbs to indicate past tense. Words are formed by combining phonemes, which are the basic sound units of a language. Different languages have different sets of phonemes (e.g., “ah” vs.
392
Functional Brain Systems: Reticular Formation01:13

Functional Brain Systems: Reticular Formation

2.6K
The reticular formation is a complex network of gray and white matter located within the brainstem extending from the medulla to the midbrain.
Within the reticular formation, there are several distinct nuclei that can be classified into three broad categories. The Raphe nuclei are located along the midline of the brainstem. They are primarily known for their role in synthesizing and releasing serotonin, a neurotransmitter involved in regulating mood, appetite, sleep, and circadian rhythms. The...
2.6K
Language01:16

Language

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Language is a unique communication system that uses words and systematic rules to organize and transmit information. Unlike other forms of communication, which may involve postures, movements, odors, or vocalizations, language relies on symbols and grammar. This makes human communication distinct from that of other species, who also communicate but do not use language in the same way humans do.
Corballis and Suddendorf (2007) and Tomasello and Rakoczy (2003) highlight the role of language in...
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相关实验视频

Updated: Sep 11, 2025

Dynamic Inter-subject Functional Connectivity Reveals Moment-to-Moment Brain Network Configurations Driven by Continuous or Communication Paradigms
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Dynamic Inter-subject Functional Connectivity Reveals Moment-to-Moment Brain Network Configurations Driven by Continuous or Communication Paradigms

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内在的功能连接性划分了跨模态语言的功能.

Joseph J Salvo1, Nathan L Anderson1, Rodrigo M Braga1,2

  • 1Ken and Ruth Davee Department of Neurology, Northwestern University Feinberg School of Medicine, Chicago, IL, United States.

Imaging neuroscience (Cambridge, Mass.)
|August 13, 2025
PubMed
概括
此摘要是机器生成的。

个人内在的功能连接 (iFC) 映射了一个分布式语言网络 (LANG),支持跨模态语言功能,区分抽象的语言处理与单模态感官输入.

关键词:
听觉皮层的听觉皮层.分布式协会网络是分布式协会网络.功能连接性的功能连接性语言语言语言语言语言语言.休息状态的休息状态.演讲 演讲 演讲 演讲

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相关实验视频

Last Updated: Sep 11, 2025

Dynamic Inter-subject Functional Connectivity Reveals Moment-to-Moment Brain Network Configurations Driven by Continuous or Communication Paradigms
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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
  • 语言学的语言学.

背景情况:

  • 语言处理涉及单模传感区域和跨模传感区域,无论采用何种方式处理输入.
  • 之前的研究发现了一个分布式语言网络 (LANG),使用与阅读任务激活重叠的内在功能连接 (iFC).
  • 朗格的分布性质表明它具有跨模态,而不是单模态的功能.

研究的目的:

  • 调查个性化的LANG网络是否真正支持跨模态语言功能.
  • 为了确定LANG是否与被听觉和视觉语言任务激活的大脑区域重叠.
  • 评估LANG边界是否将跨模态语言与单模态听觉功能划分开来.

主要方法:

  • 利用个人内部的内在功能连接 (iFC) 来映射语言网络 (LANG).
  • 将个性化的LANG与听觉 (听话) 和视觉 (阅读句子) 语言任务中的大脑活动进行了比较.
  • 分析了通过听过的,难以理解的语音引起的大脑活动,以确定单模式听觉功能的边界.

主要成果:

  • 个性化的LANG网络与通过听觉和视觉语言任务激活的区域有显著的重叠,支持其跨模式作用.
  • 沿着侧面皮层的LANG网络的边界有效地区分了跨模态语言功能和单模态听觉处理.
  • 从听到过语音 (单模听觉) 的活动在很大程度上是在LANG网络之外,但遵循其边界.

结论:

  • 个性化iFC有效地划定了一个跨模态语言网络 (LANG).
  • 这些发现支持LANG服务于抽象的语言功能,与感官处理不同,这一假设.
  • 在个体内部的IFC映射是一种潜在的可行方法,用于在无法执行标准任务的失言症患者中进行语言映射.