血动力学和神经磁性语言大脑映射侧面化和空间模式的比较
Tim Coolen1,2, Alexandru Mihai Dumitrescu1, Vincent Wens1
1Université libre de Bruxelles (ULB), ULB Neuroscience Institute (UNI), Laboratoire de Neuroanatomie et Neuroimagerie translationnelles (LN2T), Brussels, Belgium.
Clinical neurophysiology practice
|November 28, 2025
概括
整合功能磁共振成像 (fMRI) 和磁脑图谱 (MEG) 用于语言映射可以减少横向化不一致. 多模式集成增强了用于临床应用的大脑绘图的稳定性.
科学领域:
- 神经科学是一个神经科学.
- 认知科学 认知科学
- 医疗成像医学成像
背景情况:
- 半球横向化和语言处理的空间模式对于理解大脑功能至关重要.
- 功能磁共振成像 (fMRI) 和磁脑成像 (MEG) 是绘制大脑活动的关键神经成像技术.
研究的目的:
- 通过使用fMRI和MEG来比较和整合半球横向化和语言映射的空间模式.
- 评估结合这两种模式数据对语言映射准确性和稳定性的影响.
主要方法:
- 20名健康成年人在接受fMRI和MEG时执行了三种语言任务.
- 一个统一的框架确保了方法的一致性,包括相同的任务和标准化的信号分析.
- 横向性指数 (LI) 和空间重叠被量化,以比较和整合跨模式的结果.
主要成果:
- 任务和模式集成的LI将侧面化不一致性从45%降低到10%.
- 与fMRI相比,磁脑电图 (MEG) 的LI变化率是fMRI的两倍.
- 空间重叠主要发生在左前时间区域,在其他区域有特定的模式.
结论:
- 虽然核心语言区域一直被确定,但fMRI和MEG的整合提高了健康个体语言映射的稳定性.
- 多模式整合,考虑到横向化不一致性和模式特定的模式,可以帮助手术前临床决策.
更多相关视频
07:44Assessment of Cerebral Lateralization in Children using Functional Transcranial Doppler Ultrasound fTCD
Published on: September 27, 2010
20.8K
13:12Translational Brain Mapping at the University of Rochester Medical Center: Preserving the Mind Through Personalized Brain Mapping
Published on: August 12, 2019
46.3K
相关概念视频
Lateralization
948
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.
948
Cerebral Hemispheres
2.0K
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...
2.0K
Higher Mental Functions of the Brain: Language
3.4K
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...
3.4K
Language and Cognition
693
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.
693
