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相关概念视频

Synteny and Evolution02:31

Synteny and Evolution

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John H. Renwick first coined the term “synteny” in 1971, which refers to the genes present on the same chromosomes, even if they are not genetically linked. The species with common ancestry tend to show conserved syntenic regions. Therefore, the concept of synteny is nowadays used to describe the evolutionary relationship between species.
Around 80 million years ago, the human and mice lineages diverged from the common ancestor. During the course of evolution, the ancestral...
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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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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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Components of Language01:24

Components of Language

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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.
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Language Development01:22

Language Development

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Children master language quickly and with relative ease, supported by both biological predisposition and reinforcement. B. F. Skinner (1957) proposed that language is learned through reinforcement, while Noam Chomsky (1965) argued that language acquisition mechanisms are biologically determined.
The critical period for language acquisition suggests that the ability to acquire language is at its peak early in life. As people age, this proficiency decreases. Language development begins very...
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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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相关实验视频

Updated: May 5, 2026

Experience is Instrumental in Tuning a Link Between Language and Cognition: Evidence from 6- to 7- Month-Old Infants' Object Categorization
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Experience is Instrumental in Tuning a Link Between Language and Cognition: Evidence from 6- to 7- Month-Old Infants' Object Categorization

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语法沟通的演变 语法沟通的演变

M A Nowak1, J B Plotkin, V A Jansen

  • 1Institute for Advanced Study, Princeton, New Jersey 08540, USA. nowak@ias.edu

Nature
|April 13, 2000
PubMed
概括

人类语言进化了语法,从有限的手段中实现了无限的表达. 自然选择只有当信号需求超过一个值时才倾向于语法,这解释了为什么复杂的语言是人类独特的.

科学领域:

  • 进化生物学是进化的生物学.
  • 语言学的语言学.
  • 计算建模计算建模

背景情况:

  • 动物的沟通依赖于代表整个情况的非语法信号.
  • 人类语言是语法,使用单独的组件与单独的含义,对组合学至关重要.
  • 过渡到语法沟通是人类语言进化的关键一步.

研究的目的:

  • 模拟从非语法到语法沟通过渡的进化动态.
  • 分析自然选择是如何推动语言演化中的这种转变的.
  • 确定语法出现和受到青的条件.

主要方法:

  • 开发了一个语言演变的人口动态模型.
  • 定义了词语的基本繁殖比.
  • 在进化压力下计算了最大的词典大小.

主要成果:

  • 语法使得更大的词汇库和新的消息表述成为可能.
  • 自然选择只在必要的信号数量超过特定值时,才有利于语法出现.
  • 该模型量化了信号要求和语法演变之间的关系.

结论:

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  • 语法的出现取决于超过信号必要性的关键值.
  • 这一门可能解释了人类独特的语法沟通和复杂语言的进化.
  • 这项研究为通过自然选择理解语言演变提供了定量框架.