人类大脑功能子电路的同质景观
Duy Duong-Tran1,2, Ralph Kaufmann3, Jiong Chen1,4
1Department of Biostatistics, Epidemiology and Informatics, Perelman School of Medicine, University of Pennsylvania, PA, USA.
bioRxiv : the preprint server for biology
|January 8, 2024
概括
这项研究引入了一种新的同源形式主义来量化人类大脑功能子电路的更高阶特性. 该方法揭示了独特的网络特征和特定任务的功能二分法,特别是在默认模式和边缘网络中.
科学领域:
- 神经科学是一个神经科学.
- 网络科学 网络科学
- 拓学的拓学
背景情况:
- 人类大脑的功能连接表现出局部和非局部的特性.
- 功能子电路内的拓层的非局部特征仍然未被充分探索.
研究的目的:
- 提出一种同质形式主义来量化人类大脑功能子电路的高阶特性.
- 调查局部功能子电路诱导的拓层的非局部性质.
主要方法:
- 开发一种同源形式主义来分析人类大脑的功能连接.
- 运用形式主义来量化功能子电路在全脑和子电路水平上更高层次的特征.
主要成果:
- 每一个同源顺序都独特地描述了大脑功能子电路的互补性质.
- 在休息和运动任务之间观察到显著的同源距离,表明功能连接的自我相似性.
- 休息任务差异化在情绪,运动和工作记忆任务的特定同类顺序中最为突出.
- 默认模式网络在第一个和第二个同源支架上显示出突出的休息任务二分法.
- 边缘网络在跨任务和主题领域的同质重构中发挥着关键作用.
结论:
- 提出的同源形式主义有效地揭示了人类大脑功能网络的多样化,高阶性质.
- 这些发现突出了大脑功能连接的自我相似性和任务依赖的重新配置.
- 该研究提供了对特定网络 (如边缘系统) 的神经生理学作用的见解,并建议对复杂网络分析具有更广泛的适用性.
相关概念视频
Functional Brain Systems: Limbic System
2.8K
The limbic system, often called the "emotional brain," is a complex set of structures located deep within the brain. The intricate network of the limbic system supports a wide range of psychological functions, from emotional regulation to memory formation and sensory processing. This functional brain region encompasses specific parts of the diencephalon and the cerebrum, integrating the higher mental functions of the cerebral cortex with the primitive emotional responses of the deep brain...
2.8K
Cerebral Hemispheres
345
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...
345
Organization of the Brain
806
The brain is an integral component of the nervous system and serves as the center for processing sensory inputs, making decisions, and directing bodily actions. This complex organ is organized into three primary sections: the hindbrain, midbrain, and forebrain, each responsible for a range of vital functions.
Hindbrain
The hindbrain, located at the base of the brain, plays a vital role in regulating automatic processes that sustain life. It includes the medulla oblongata, which is essential for...
Hindbrain
The hindbrain, located at the base of the brain, plays a vital role in regulating automatic processes that sustain life. It includes the medulla oblongata, which is essential for...
806
Lobes of the Cerebrum
665
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....
665
Cerebrum: Anatomical Overview II
1.7K
Each cerebral hemisphere can be divided into three main regions. The outermost region, the cerebral cortex, is a thin layer (2 to 4 millimeters thick) made up of gray matter, consisting of neuron cell bodies, dendrites, glial cells, and blood vessels. The middle region, or white matter, is primarily composed of myelinated nerve fibers organized into three types of large tracts: association fibers, commissures, and projection fibers. Association fibers connect different areas within the same...
1.7K
Cerebrum: Anatomical Overview I
1.8K
The main and largest component of the human brain is the cerebrum. The cerebrum consists of two main parts: the cerebral cortex, an outer layer with wrinkles or folds known as gyri and shallow grooves called sulci, and a deeper region beneath it. The cerebrum divides into two distinct hemispheres and contains five different lobes: the frontal, parietal, temporal, occipital, and insula. The central sulcus separates the frontal and parietal lobes and two functionally important gyri — the...
1.8K


