语言网络的横向化反映在整个大脑皮层的宏观功能组织中.
Loïc Labache1, Tian Ge2,3,4, B T Thomas Yeo5,6,7,8,9
1Department of Psychology, Yale University, New Haven, CT, 06520, US. loic.labache@yale.edu.
Nature communications
|June 9, 2023
概括
人类非典型的语言主导与大脑组织的广泛变化有关,遗传因素影响语言横向化和这些更广泛的皮质模式.
科学领域:
- 神经科学是一个神经科学.
- 人类大脑组织组织
- 认知神经科学 认知神经科学
背景情况:
- 半球专业化是大脑功能的关键,但它在皮层架构上的范围仍在争论中.
- 大多数人表现出左半球对语言的支配,但显著的少数人表现出反向横向化.
研究的目的:
- 研究非典型语言主导地位与全球皮层组织之间的关系.
- 探索语言横向化和皮层不对称性的遗传基础.
主要方法:
- 利用了来自人类结合体项目的双胞胎和家庭数据.
- 分析了大脑皮层的宏观功能梯度.
- 检查了与语言主导相关的皮质组织的半球差异.
主要成果:
- 非典型的语言占主导地位与皮层功能组织的全球变化有关.
- 在具有非典型语言组织的个体中观察到功能梯度的半球差异.
- 语言横向化和梯度不对称性都显示出部分遗传影响.
结论:
- 非典型的语言主导与全球皮层组织的独特模式有关.
- 遗传因素在语言横向化和宏观皮质不对称性中起作用.
- 这些发现增强了对半球专业化和皮质架构变异性的理解.
相关概念视频
Lateralization
375
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.
375
Lobes of the Cerebrum
764
The cerebral cortex, a critical structure of the brain, is intricately divided into two hemispheres, each consisting of four distinct lobes: occipital, temporal, frontal, and parietal. These lobes function cooperatively to regulate various cognitive and sensory functions, forming the basis of our complex neural capabilities.
Frontal lobe
The frontal lobes, located behind the forehead, are the command center of our brain, controlling personality, intelligence, and voluntary muscle movements....
Frontal lobe
The frontal lobes, located behind the forehead, are the command center of our brain, controlling personality, intelligence, and voluntary muscle movements....
764
Cerebral Hemispheres
405
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...
405
Higher Mental Functions of the Brain: Language
939
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...
939
Somatosensory, Motor, and Association Cortex
590
The somatosensory cortex in the parietal lobes is crucial for interpreting sensory data such as touch, temperature, and proprioception. The somatosensory cortex, situated in the parietal lobes, plays a vital role in interpreting sensory information like touch, temperature, and proprioception—awareness of body position. This specialized brain region features an organized structure wherein neurons at the top primarily process sensations originating from the lower body. In contrast, those at...
590
Association Areas of the Cortex
5.6K
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,...
5.6K


