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相关概念视频

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.
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Visual System01:26

Visual System

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Light enters the eye through the cornea, a transparent, dome-shaped surface covering the surface of the eyeball that helps to direct and focus incoming light. This light is then channeled toward the pupil, an adjustable opening whose size is controlled by the iris. The iris, a pigmented muscle, regulates the amount of light entering the eye by contracting or dilating the pupil, thereby ensuring optimal light levels for clear vision.
Once through the pupil, the light passes through the lens, a...
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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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Anatomy of the Eyeball01:20

Anatomy of the Eyeball

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The eye is a spherical, hollow structure composed of three tissue layers. The outer layer — the fibrous tunic, comprises the sclera — a white structure — and the cornea, which is transparent. The sclera encompasses some of the ocular surface, most of which is not visible. However, the 'white of the eye' is distinctively visible in humans compared to other species. The cornea, a clear covering at the front of the eye, enables light penetration. The eye's middle...
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Visual Agnosia01:12

Visual Agnosia

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Visual agnosia is a condition characterized by the inability to recognize visually presented objects despite having normal vision. For instance, a person with visual agnosia can describe the shape and color of an object but cannot identify or name it. This impairment does not affect their visual field, acuity, color vision, brightness discrimination, language, or memory. An example of this condition in a social setting is someone at a dinner party asking for "that silver thing with a round...
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Higher Mental Functions of the Brain: Language01:10

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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.
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相关实验视频

Updated: Jan 16, 2026

Exploring Infant Sensitivity to Visual Language using Eye Tracking and the Preferential Looking Paradigm
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在熟练的聋人读者中,视觉文字形式系统中的双边单词选择性梯度.

Laurie S Glezer1, Stephen McCullough1, Brennan Terhune-Cotter2

  • 1San Diego State University Research Foundation, San Diego, CA, USA.

Neurobiology of language (Cambridge, Mass.)
|September 26, 2025
PubMed
概括

聋人读者利用左脑和右脑半球进行视觉词识别,与听觉人士不同. 这种在视觉文字形式系统 (VWFS) 中的双边组织是一种独特的神经签名,用于在聋人成年人中成功阅读.

关键词:
聋人阅读者 聋人阅读者功能磁力共振成像 (fMRI) 是一种功能共振成像.腹部后额头和皮层 时间皮层视觉文字形式系统 视觉文字形式系统

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Interaction between Phonological and Semantic Processes in Visual Word Recognition using Electrophysiology

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Lexical Decision Task for Studying Written Word Recognition in Adults with and without Dementia or Mild Cognitive Impairment
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相关实验视频

Last Updated: Jan 16, 2026

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Interaction between Phonological and Semantic Processes in Visual Word Recognition using Electrophysiology
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Lexical Decision Task for Studying Written Word Recognition in Adults with and without Dementia or Mild Cognitive Impairment
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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:

  • 听力个体的视觉词语识别依赖于左侧化腹腔皮 (vOT) 皮层层次结构.
  • 右半球参与阅读通常与听力较差的人的阅读技能 (阅读障碍) 有关.
  • 聋人阅读者的文字识别神经组织,特别是右侧vOT的作用,仍然在很大程度上是未知的.

研究的目的:

  • 调查双边对聋人和听力阅读者的VOT中书面文字处理的等级组织.
  • 为了确定聋和语音能力是否影响vOT.word选择性梯度的横向性.
  • 为了比较在聋人与听力个体中成功阅读的神经签名.

主要方法:

  • 功能磁共振成像 (fMRI) 用于研究大脑活动.
  • 参与者包括技能匹配的聋人和听觉成年人.
  • 刺激在拼写规律上有所不同:辅音字符串,伪词和真实词.

主要成果:

  • 听力阅读者在左视觉文字形式系统 (VWFS) 中显示出排序结构,复制了之前的发现.
  • 聋读者在左侧的VWFS中表现出类似的等级结构.
  • 聋读者在右侧的VWFS中也表现出类似的等级结构,表明双边参与.

结论:

  • 聋人读者中VWFS的双边层次组织是成功阅读的独特神经签名.
  • 与阅读障碍的右半球不适应激活不同,这种双边激活对熟练的聋人读者来说并不有害.
  • 在聋人成年人中成功阅读不需要典型的发育转向主要是左侧处理.