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相关概念视频

Language and Cognition01:27

Language and Cognition

345
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.
345
Language01:16

Language

213
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...
213
The Evidence for Evolution02:55

The Evidence for Evolution

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Genetic variations accumulating within populations over generations give rise to biological evolution. Evolutionary changes can result in the formation of novel varieties and entire new species. These changes are responsible for the diverse forms of life inhabiting the planet. The evidence for evolution suggests that all living organisms descended from common ancestors.
42.7K
Mutation, Gene Flow, and Genetic Drift01:09

Mutation, Gene Flow, and Genetic Drift

58.4K
In a population that is not at Hardy-Weinberg equilibrium, the frequency of alleles changes over time. Therefore, any deviations from the five conditions of Hardy-Weinberg equilibrium can alter the genetic variation of a given population. Conditions that change the genetic variability of a population include mutations, natural selection, non-random mating, gene flow, and genetic drift (small population size).
58.4K
Gene Evolution - Fast or Slow?02:05

Gene Evolution - Fast or Slow?

7.1K
The genomes of eukaryotes are punctuated by long stretches of sequence which do not code for proteins or RNAs. Although some of these regions do contain crucial regulatory sequences, the vast majority of this DNA serves no known function. Typically, these regions of the genome are the ones in which the fastest change, in evolutionary terms, is observed, because there is typically little to no selection pressure acting on these regions to preserve their sequences.
In contrast, regions which code...
7.1K
Synteny and Evolution02:31

Synteny and Evolution

3.3K
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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相关实验视频

Updated: Jul 1, 2025

Following the Dynamics of Structural Variants in Experimentally Evolved Populations
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Following the Dynamics of Structural Variants in Experimentally Evolved Populations

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文化进化创造了语言的统计结构.

Inbal Arnon1, Simon Kirby2

  • 1Psychology Department, Hebrew University of Jerusalem, Jerusalem, Israel. inbal.arnon@mail.huji.ac.il.

Scientific reports
|March 4, 2024
PubMed
概括

语言结构是文化进化的产物. 语言中的部分通过整体到部分学习来开发和跟踪权力法分配,增强可学习性.

科学领域:

  • 认知科学 认知科学
  • 进化语言学的语言学.
  • 计算语言学 计算语言学

背景情况:

  • 人类语言具有独特的组成结构,使得有意义的部分能够有效地重组.
  • 这些语言部分的起源及其特征性的权力法频率分布仍然不太清楚.
  • 从未细分的输入中发现这些部分对于语言学习至关重要.

研究的目的:

  • 通过文化进化研究语言部分的出现及其权力-法律的分布.
  • 为了确定单独的可学习性压力是否能够推动这些结构性质的形成.
  • 探索整体学习在塑造语言结构中的作用.

主要方法:

  • 利用一种涉及序列复制的文化传播的实验类型.
  • 参与者从之前的参与者那里学习和复制非语言序列.
  • 分析了部分在模拟世代中的序列的出现和分布.

主要成果:

  • 部分自发地从最初未分段的序列中出现.
  • 这些部分的频率分布在几代人的时间里逐渐接近功率定律.
  • 新出现的属性显著提高了序列集的可学习性.

结论:

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  • 语言的核心统计性质,包括细分和权力法分配,可以通过文化进化出现.
  • 这些属性既是增加学习能力的原因,也是其后果.
  • 全部分学习为语言结构的文化传播提供了一种机制.