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相关概念视频

Higher Mental Functions of the Brain: Language01:10

Higher Mental Functions of the Brain: Language

793
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...
793
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.
342
Components of Language01:24

Components of Language

263
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.
263
Working Memory01:24

Working Memory

155
Working memory refers to a combination of components, including short-term memory and attention, that allow an individual to hold information temporarily as we perform cognitive tasks. It is an essential cognitive function that enables the execution of complex tasks such as problem-solving, comprehension, and reasoning. Unlike short-term memory, which simply involves the storage of information for a brief period, working memory involves the active manipulation and processing of this...
155
Tip-of-the-Tongue Phenomenon01:10

Tip-of-the-Tongue Phenomenon

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The tip-of-the-tongue (TOT) phenomenon is a cognitive experience characterized by a temporary inability to retrieve specific information from memory despite having a strong feeling of knowing the information. Although individuals cannot access the target word or detail, they frequently recall related elements, such as its initial letter, syllable count, or context. This partial retrieval often causes frustration, as one might recognize a familiar face or know that a name starts with a specific...
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SBAR I: Understanding the Concept01:29

SBAR I: Understanding the Concept

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Effective communication among healthcare professionals during hand-off reporting is essential to delivering safe and continuous patient care. Common professional interactions include reports to healthcare team members, hand-off, and transfer reports. Nurses routinely report information to other healthcare team members and also urgently contact healthcare providers to report changes in patient status.
Standardized methods of communication have been developed to ensure that information is...
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相关实验视频

Updated: Jun 24, 2025

Using Informational Connectivity to Measure the Synchronous Emergence of fMRI Multi-voxel Information Across Time
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功能和有效的连接 基础语义 语言流性 语义 语言流性

Isabella Velloso Arrigo1, Pedro Henrique Rodrigues da Silva1, Renata Ferranti Leoni2

  • 1InBrain, Department of Physics, FFCLRP, University of Sao Paulo, Av. Bandeirantes, Ribeirao Preto, Sao Paulo, 3900, 14040-901, Brazil.

Brain topography
|June 5, 2024
PubMed
概括
此摘要是机器生成的。

本研究使用fMRI绘制语义语言流 (SVF) 网络的地图,揭示了从类别识别到词生成之间的相互联系区域. 这些发现为了解神经系统疾病中的SVF提供了一个框架.

关键词:
动态功能连接的动态功能连接有效的连接性 有效的连接性功能性磁共振成像技术 功能性磁共振成像技术语言 语言 语言 语言语言流利 语言流利

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Interaction between Phonological and Semantic Processes in Visual Word Recognition using Electrophysiology
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科学领域:

  • 神经科学是一个神经科学.
  • 认知神经科学 认知神经科学
  • 神经成像是一种神经成像.

背景情况:

  • 语义语言流 (SVF) 障碍是几个神经系统疾病的标志.
  • 之前的研究表明,SVF相关领域的激活,但网络连接和功能角色仍然不清楚.

研究的目的:

  • 在健康个体中研究 SVF 网络的静态和动态功能连接 (FC) 和有效连接.
  • 阐明SVF网络内的不同大脑区域的功能作用.

主要方法:

  • 功能磁共振成像 (fMRI) 用于评估静态和动态FC和SVF任务期间的有效连接.
  • 分析包括识别激活区域和绘制连接模式.

主要成果:

  • 观察到下额头回环 (IFG),中额头回环 (pMTG),角回环 (AG),前带环 (AC),胰岛和各种额头回环中的激活.
  • 静态FC显示了一个高度相互连接的网络,在任务期间增加了对pmTG和AG的交流连接.
  • 动态FC确定了用于类别识别,语言理解,单词选择,生成和发音规划的电路.
  • 有效的连接分析提出了一个源自AG到pMTG的网络,带有腹部和背部流的划分,以及模块化的前部区域.

结论:

  • 成功地映射了SVF网络,包括从类别识别到词生成的过程.
  • 方法方法为未来对神经疾病中SVF的研究提供了宝贵的工具.