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関連する概念動画

Synteny and Evolution02:31

Synteny and Evolution

3.0K
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

6.0K
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...
6.0K
Language01:16

Language

786
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...
786
Components of Language01:24

Components of Language

844
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.
844
Language Development01:22

Language Development

1.1K
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...
1.1K
Language and Cognition01:27

Language and Cognition

892
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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関連する実験動画

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
05:35

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

Published on: April 19, 2017

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構文コミュニケーションの進化

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
まとめ

人間の言語は構文を進化させ,有限な手段から無限の表現を可能にしました. 自然選択は,信号需要が限界を超えた場合にのみ構文を好み,複雑な言語が人間に独特である理由を説明します.

科学分野:

  • 進化生物学の進化生物学について
  • 言語学 言語学とは
  • コンピューティング・モデリング

背景:

  • 動物のコミュニケーションは,全体的な状況を表す非構文的な信号に依存しています.
  • 人間の言語は文法的で,個々の意味を持つ離散的な構成要素を使用しており,これはコンビネタリックにとって不可欠です.
  • 文法的なコミュニケーションへの移行は,人間の言語の進化における重要なステップでした.

研究 の 目的:

  • 非構文から構文コミュニケーションへの移行の進化のダイナミクスをモデル化すること.
  • 言語の進化におけるこの移行を自然選択がどのように駆動するかを分析する.
  • 構文が出現し,優遇される条件を決定する.

主な方法:

  • 言語の進化のための人口動態モデルを開発した.
  • 単語の基本的生殖比を定義した.
  • 進化的圧力下での最大辞書サイズを計算した.

主要な成果:

  • 構文は,より大きなレパートリーと新しいメッセージの構文を可能にします.
  • 自然選択は,必要な信号の数が特定の値を超えた場合にのみ,構文の出現を好む.
  • このモデルは,信号要件と構文の進化の間の関係を定量化しています.

さらに関連する動画

Using Eye Movements Recorded in the Visual World Paradigm to Explore the Online Processing of Spoken Language
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Using Eye Movements Recorded in the Visual World Paradigm to Explore the Online Processing of Spoken Language

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Using the Visual World Paradigm to Study Sentence Comprehension in Mandarin-Speaking Children with Autism
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Using the Visual World Paradigm to Study Sentence Comprehension in Mandarin-Speaking Children with Autism

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関連する実験動画

Last 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
05:35

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

Published on: April 19, 2017

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Using Eye Movements Recorded in the Visual World Paradigm to Explore the Online Processing of Spoken Language
09:27

Using Eye Movements Recorded in the Visual World Paradigm to Explore the Online Processing of Spoken Language

Published on: October 13, 2018

10.3K
Using the Visual World Paradigm to Study Sentence Comprehension in Mandarin-Speaking Children with Autism
06:15

Using the Visual World Paradigm to Study Sentence Comprehension in Mandarin-Speaking Children with Autism

Published on: October 3, 2018

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結論:

  • 構文の出現は,信号の必要性の重要な値を超えることを条件としています.
  • この値は,文法的なコミュニケーションと複雑な言語のユニークな人間の進化を説明するかもしれません.
  • この研究は,自然選択による言語の進化を理解するための定量的な枠組みを提供します.