相关实验视频
Updated: Jul 28, 2025

08:49
Visualization of Cortical Modules in Flattened Mammalian Cortices
Published on: January 22, 2018
13.0K
人类大脑皮层中的分层重叠模块结构改善了个体识别.
Yongchen Fan1, Rong Wang1,2, Chao Yi1
1State Key Laboratory for Strength and Vibration of Mechanical Structures and School of Aerospace Engineering, Xi'an Jiaotong University, Xi'an 710049, China.
iScience
|May 30, 2023
概括
这项研究揭示了大脑模块如何在层次上重叠. 这些重叠的大脑网络,特别是在控制和注意力系统中,包含独特的个人信息.
科学领域:
- 神经科学是一个神经科学.
- 网络科学 网络科学
- 计算生物学 计算生物学
背景情况:
- 大脑网络的分层模块化组织被广泛接受.
- 新出现的证据表明,大脑模块表现出重叠的结构.
- 这些重叠的大脑模块的等级组织在很大程度上仍未被探索.
研究的目的:
- 开发一种新的框架来发现大脑中等级重叠的模块化结构.
- 研究这些结构的特征,包括重叠模式和自我相似性.
- 评估层次大脑组织对个人识别的潜力.
主要方法:
- 开发一个使用嵌套光谱分区算法的框架.
- 应用边缘中心网络模型来分析大脑连接.
- 将大脑边缘分为系统内和系统间的类别.
主要成果:
- 大脑模块的重叠在半球之间是对称的,控制和突出/腹部注意网络的最大重叠.
- 层次的重叠模块在不同的组织层面上表现出自我相似的重叠程度.
- 相比于单层结构,层次大脑结构提供了更多独特的个人信息,特别是在关键功能网络中.
结论:
- 开发的框架有效地揭示了分层重叠的模块化大脑结构.
- 这些发现强调了重叠模块在功能性大脑组织中的重要性.
- 层次大脑组织,特别是在特定网络中,有可能用于神经科学应用,以了解认知和障碍.
相关概念视频
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
Organization of the Brain
880
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...
880
Lobes of the Cerebrum
772
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....
772
Cerebrum: Anatomical Overview I
2.0K
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...
2.0K
Cerebrum: Anatomical Overview II
1.8K
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...
1.8K
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

