以相似性为导向的多视图功能性脑网络融合
Zhigang Li1, Jingyu Liu1, Mengkai Sun1
1Key Laboratory of Brain Health Intelligent Evaluation and Intervention, Ministry of Education, and the School of Medical Technology, Beijing Institute of Technology, Beijing 100081, China.
Medical image analysis
|June 15, 2025
概括
我们的新模型通过保留共享的几何结构,有效地融合了多视图功能大脑网络 (FBNs). 这种方法提高了自闭症谱系障碍 (ASD) 等精神障碍的诊断准确性,并确定了关键生物标志物.
科学领域:
- 神经科学是一个神经科学.
- 计算精神病学是一种计算精神病学.
- 医学成像分析 医学成像分析
背景情况:
- 功能性大脑网络 (FBNs) 对于理解精神障碍至关重要.
- 整合多样化的神经成像数据提供了全面的见解,但在维护数据完整性方面面临着挑战.
- 不同质的数据融合对于准确的脑功能分析和疾病诊断至关重要.
研究的目的:
- 为多视图FBN开发一个创新的融合模型,保留共享的几何结构.
- 解决整合异质神经成像数据的挑战,包括小样本大小和高维度.
- 通过使用先进的数据融合技术,提高精神障碍的诊断准确性和生物标志物发现.
主要方法:
- 提出了一种新的多重规范化术语,以捕捉和保存FBN视图中常见的几何结构.
- 引入了一种双重规范化函数,以最大限度地提高不同视图之间的相似性,并集成了互补信息.
- 开发了一种双规范化框架,用于使用异构的神经成像数据进行强大的图形构建.
主要成果:
- 拟议的模型在ABIDE数据集上胜过了最先进的诊断方法.
- 保存几何结构显著提高了自闭症谱系障碍 (ASD) 的诊断准确性.
- 在初级视觉皮层中确定了关键的ASD生物标志物,与最近的高影响性发现相一致.
结论:
- 双规范化的融合模型有效地集成了多视图FBN数据,同时保留了基本的几何结构.
- 这种方法为分析复杂的大脑网络和推进精神障碍诊断提供了一个强大的框架.
- 这些发现强调了在神经成像数据融合中对几何结构保存的重要性,用于生物标志物发现和临床应用.
相关概念视频
Vision
Vision is the result of light being detected and transduced into neural signals by the retina of the eye. This information is then further analyzed and interpreted by the brain. First, light enters the front of the eye and is focused by the cornea and lens onto the retina—a thin sheet of neural tissue lining the back of the eye. Because of refraction through the convex lens of the eye, images are projected onto the retina upside-down and reversed.
Association Areas of the Cortex
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,...
Functional Brain Systems: Reticular Formation
The reticular formation is a complex network of gray and white matter located within the brainstem extending from the medulla to the midbrain.
Within the reticular formation, there are several distinct nuclei that can be classified into three broad categories. The Raphe nuclei are located along the midline of the brainstem. They are primarily known for their role in synthesizing and releasing serotonin, a neurotransmitter involved in regulating mood, appetite, sleep, and circadian rhythms. The...
Within the reticular formation, there are several distinct nuclei that can be classified into three broad categories. The Raphe nuclei are located along the midline of the brainstem. They are primarily known for their role in synthesizing and releasing serotonin, a neurotransmitter involved in regulating mood, appetite, sleep, and circadian rhythms. The...
Cerebral Hemispheres
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...
Visual System
Light enters the eye through the cornea, a transparent, dome-shaped surface covering the surface of the eyeball that helps to direct and focus incoming light. This light is then channeled toward the pupil, an adjustable opening whose size is controlled by the iris. The iris, a pigmented muscle, regulates the amount of light entering the eye by contracting or dilating the pupil, thereby ensuring optimal light levels for clear vision.
Once through the pupil, the light passes through the lens, a...
Once through the pupil, the light passes through the lens, a...
Parallel Processing
The brain processes sensory information rapidly due to parallel processing, which involves sending data across multiple neural pathways at the same time. This method allows the brain to manage various sensory qualities, such as shapes, colors, movements, and locations, all concurrently. For instance, when observing a forest landscape, the brain simultaneously processes the movement of leaves, the shapes of trees, the depth between them, and the various shades of green. This enables a quick and...


