变压器和CNN学习不同的大脑年龄的概念吗?
Nys Tjade Siegel1, Dagmar Kainmueller2,3,4, Fatma Deniz5,6
1Department of Psychiatry and Neurosciences, Charité - Universitätsmedizin Berlin (Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health), Berlin, Germany.
Human brain mapping
|June 9, 2025
概括
变压器和卷积神经网络在从MRI扫描中预测大脑年龄方面表现相似. 不同的深度学习模型捕捉到可比的大脑衰老效应,确保可靠的生物标志物分析.
科学领域:
- 神经成像是一种神经成像.
- 人工智能的人工智能
- 生物标志物开发 生物标志物开发
背景情况:
- 预测的大脑年龄是使用MRI机器学习来预测大脑健康的生物标志物.
- 卷积神经网络 (CNN) 是目前用于大脑年龄预测的最新技术.
- 变压器代表了一个新的深度学习架构,具有提高性能的潜力.
研究的目的:
- 为了比较变压器模型与CNN的性能,以预测大脑年龄.
- 调查不同的深度学习架构是否捕捉到大脑衰老的不同方面.
- 从各种模型中分析大脑年龄预测的实际含义和临床实用性.
主要方法:
- 适应的简单视觉变压器 (sViT) 和转移窗口变压器 (SwinT) 模型.
- 与使用ResNet50 (CNN) 架构的变压器模型进行比较.
- 利用来自英国生物银行数据集的46,381张T1加权结构MR图像.
主要成果:
- 在SwinT和ResNet50中,大脑年龄预测的准确性相似.
- 变压器模型 (sViT,SwinT) 和ResNet50捕获了类似的大脑衰老模式.
- 在跨架构的大脑年龄预测结构中没有观察到实质性的差异.
结论:
- 深度学习模型架构似乎不会混大脑年龄研究.
- 变压器在预测大脑年龄方面表现有前途,并有可能进一步改进.
- 模型架构的选择不会显著改变对大脑年龄生物标志物的解释.
相关概念视频
01:01Neuroplasticity
309
Neuroplasticity reflects the brain's remarkable capacity to adapt and evolve, responding dynamically to learning, experiences, or injury by reorganizing its neural circuitry. This reorganization involves creating new neural connections and refining old ones through a series of biological processes that contribute to the brain's lifelong development and adaptability.
309
01:24Concepts and Prototypes
117
The human nervous system handles vast amounts of information by translating sensory stimuli into neural impulses, which the brain processes, creating thoughts expressed through language or stored as memories. The brain also synthesizes information from emotions and memories, which significantly influence thoughts and behaviors. This intricate process creates a comprehensive mental picture.
The brain organizes this information using concepts, which are mental categories grouping linguistic data,...
The brain organizes this information using concepts, which are mental categories grouping linguistic data,...
117
01:20Introduction to Cognitive Psychology
448
Cognitive psychology is the field of psychology dedicated to examining how people think. It attempts to explain how and why we think the way we do by studying the interactions among human thinking, emotion, creativity, language, and problem-solving, as well as other cognitive processes. Cognitive psychology studies how information is processed and manipulated in remembering, thinking, and knowing.
This field emerged in the mid-20th century, following a period dominated by behaviorism, which...
This field emerged in the mid-20th century, following a period dominated by behaviorism, which...
448