在左半球周产中风之后,视觉文字形式区域的右侧化
Anna Seydell-Greenwald1, Natalya Vladyko2, Catherine E Chambers2
1Georgetown University Medical Center, Washington, DC 20007 as2266@georgetown.edu.
概括
视觉词形区域 (VWFA) 通常侧向左半球. 这项研究表明,当语言由于早期中风而右侧化时,VWFA横向化转移到右半球.
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:
- 视觉文字形式区域 (VWFA) 对于阅读至关重要.
- 其强烈的左半球侧面化被争论,包括视觉特征,与其他视觉刺激的竞争或语言系统侧面化的理论.
研究的目的:
- 测试VWFA横向化是否跟随语言横向化.
- 为了调查由于围产中风导致右半球语言的个体的VWFA组织.
主要方法:
- 使用了功能磁共振成像 (fMRI).
- 参与者包括左半球周产中风和右半球语言的个体,以及人口统计学上匹配的对照.
- fMRI对比伪词和位置图片呈现.
主要成果:
- 对照显示预期的左侧VWFA激活.
- 右半球语言的个体表现出右侧的VWFA激活.
- 这甚至发生在完整的左半球组织中.
结论:
- VWFA 侧面化取决于前腔语言系统的侧面化.
- 这提供了强有力的证据,表明语言网络组织塑造了视觉文字形式处理区域.
更多相关视频
09:42Author Spotlight: Using Motor Imagery Brain-Computer Interface to Improve Motor and Cognitive Function in Stroke Patients
Published on: September 1, 2023
1.1K
07:44Assessment of Cerebral Lateralization in Children using Functional Transcranial Doppler Ultrasound fTCD
Published on: September 27, 2010
20.2K
相关概念视频
Lateralization
303
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.
303
Higher Mental Functions of the Brain: Language
729
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...
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...
729
Cerebral Hemispheres
297
The human brain, a complex organ, is functionally divided into two cerebral hemispheres—left and right. These hemispheres are interconnected by a structure of paramount importance, the corpus callosum. This substantial bundle of neural fibers is not just a bridge between the hemispheres but a crucial element for the brain's comprehensive functioning. It enables efficient communication between the two hemispheres, allowing each side of the brain to control and receive sensory and motor...
297
Association Areas of the Cortex
5.0K
Association areas are regions of the cerebral cortex that do not have a specific sensory or motor function. Instead, they integrate and interpret information from various sources to enable higher cognitive processes such as memory, learning, and decision-making. Some key association areas include the following:
Prefrontal Association Area: This area is located in the frontal lobe and is involved in planning, decision-making, and moderating social behavior. It connects with primary motor areas,...
Prefrontal Association Area: This area is located in the frontal lobe and is involved in planning, decision-making, and moderating social behavior. It connects with primary motor areas,...
5.0K
Language and Cognition
321
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.
321
Prosopagnosia
124
Prosopagnosia, also known as face blindness, is the inability to recognize faces. In severe cases, individuals with prosopagnosia may not recognize close family members, including parents and spouses, by their faces. For instance, someone with prosopagnosia might walk past their child in a crowd, only realizing their mistake upon noticing their child's distinctive backpack or favorite jacket. Prosopagnosia specifically impairs facial recognition, while the recognition of other objects or...
124
