在叶中语言障碍:从fMRI研究的分析中得出的见解
1Department of Neurology, Yale University, 333 Cedar Street, New Haven, CT 06520, United States.
Epilepsy & behavior : E&B
|September 6, 2025
概括
由于大脑的变化,叶 (TLE) 会导致语言问题. 神经成像显示左侧语言区域活动减少, 右侧语言区域活动增加,
科学领域:
- 神经科学
- 病研究
- 认知神经学
背景情况:
- (TLE) 是一种常见的神经疾病.
- 通常与严重的语言障碍有关.
- 了解TLE中大脑变化对于管理语言缺陷至关重要.
研究的目的:
- 对TLE患者与语言相关的大脑变化的神经成像数据进行定量合成.
- 确定与健康对照人相比,TLE中的特定大脑区域的活性发生变化.
- 探索影响这些大脑变化的因素,如TLE侧面,持续时间和语言任务.
主要方法:
- 12个功能神经成像研究的元分析.
- 包括390名TLE患者和356名健康对照患者 (年龄在8. 1- 70岁之间).
- 分析与语言相关区域的大脑活动 (低活性和高活性).
主要成果:
- 在TLE患者中,左额头语言区域 (Broca,前中心,中额头回旋) 呈现低活性.
- 在右半球区域观察到过度活跃,
- 根据TLE侧面,持续时间和任务要求,特定的低活性/高活性模式有所变化,表明复杂的神经塑性适应.
结论:
- TLE与语言网络的广泛变化有关,包括左半球功能减弱和右半球补偿.
- 这些变化反映了病态和神经塑性重组之间的复杂相互作用.
- 在TLE中,布罗卡区域的低活性和左侧岛屿的过活性可以作为语言功能障碍严重性的神经标志物.
更多相关视频
09:32Network Analysis of Foramen Ovale Electrode Recordings in Drug-resistant Temporal Lobe Epilepsy Patients
Published on: December 18, 2016
12.5K
09:57Author Spotlight: Advancing Pediatric Epilepsy Surgery in Children Through Novel Biomarkers and Enhanced Localization
Published on: September 20, 2024
2.8K
相关概念视频
Higher Mental Functions of the Brain: Language
6.0K
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...
6.0K
Cerebral Hemispheres
3.9K
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...
3.9K
Language and Cognition
892
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.
892
