相关实验视频
Updated: Jun 29, 2025

08:49
Visualization of Cortical Modules in Flattened Mammalian Cortices
Published on: January 22, 2018
12.9K
哺乳动物大脑皮层-皮层连接的可预测性
Ferenc Molnár1, Szabolcs Horvát2,3,4,5, Ana R Ribeiro Gomes6
1Department of Physics, University of Notre Dame, Notre Dame, IN, USA.
Network neuroscience (Cambridge, Mass.)
|April 2, 2024
概括
哺乳动物的大脑表现出可预测的皮质网络,甚至跨物种. 机器学习揭示了基于规则的网络形成,有助于比较的连接组研究.
科学领域:
- 神经科学是一个神经科学.
- 计算生物学 计算生物学
- 系统神经科学 系统神经科学
背景情况:
- 哺乳动物的大脑,尽管有大小的变化,共享保存的解剖学和功能特征.
- 这些共同点表明了控制皮层网络组织的基本原则.
研究的目的:
- 开发一种机器学习框架,用于量化加权区域间皮层网络中的可预测性.
- 研究皮质连接体形成中的特定物种和可概括规则.
主要方法:
- 利用和小鼠大脑的逆行通道追踪数据.
- 嵌入式投射长度测量. 嵌入式投射长度测量.
- 应用机器学习以预测二进制和加权级别的网络连接.
主要成果:
- 在两种物种的区域间皮层网络中显示出显著的可预测性.
- 实现了高精度 (85-90%的老鼠,70-80%的) 对于中等和强权重的链接.
- 发现弱环是不可预测的,这表明了不同的形成机制.
结论:
- 在中介尺度上皮层网络的形成主要是基于规则的.
- 开发的方法允许准确地归算完整的区域间网络,用于比较的连接经济学.
- 便于进行无偏见的跨物种连接组比较.
相关概念视频
Somatosensory, Motor, and Association Cortex
494
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...
494
Association Areas of the Cortex
5.3K
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,...
5.3K
Motor and Sensory Areas of the Cortex
3.8K
The cerebral cortex, the brain's outermost layer, is pivotal in processing complex cognitive tasks, emotions, and various sensory inputs and executing voluntary motor activities. This intricate structure is divided into three primary functional areas: the motor areas, sensory areas, and association areas.
Motor Areas
The motor areas located in the frontal lobe are central to controlling voluntary movements. This region is further subdivided into the primary motor cortex and the premotor cortex....
Motor Areas
The motor areas located in the frontal lobe are central to controlling voluntary movements. This region is further subdivided into the primary motor cortex and the premotor cortex....
3.8K
Cerebrum: Anatomical Overview II
1.6K
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...
1.6K

