边际最大化规范混合表示学习用于自闭症谱系障碍诊断,具有多层次流动特征
IEEE transactions on bio-medical engineering
|July 11, 2023
概括
这项研究引入了使用结构性MRI数据诊断自闭症谱系障碍 (ASD) 的新框架. 该方法通过从脑成像中学习强大的特征表示来提高诊断准确性,有助于早期干预.
科学领域:
- 神经成像是一种神经成像.
- 机器学习 机器学习
- 生物医学工程 生物医学工程
背景情况:
- 早期诊断自闭症谱系障碍 (ASD) 对有效干预至关重要.
- 结构磁共振成像 (sMRI) 是ASD诊断的关键工具,但面临着微妙的解剖变异和高维数据的挑战.
- 现有的方法在杂的高维空间中难以选择特征,这可能会阻碍诊断的准确性.
研究的目的:
- 开发一个先进的代表性学习框架,以使用sMRI改进ASD诊断.
- 解决处理异质和高维神经成像数据的现有方法的局限性.
- 提高特征的辨别力,以便更准确地对ASD进行分类.
主要方法:
- 提出了一个新的边际最大化规范混合表示学习框架.
- 从sMRI中提取多层流特征,以捕获大脑结构的全面梯度信息.
- 隐藏的表示是在低维空间中学习的,包括自我表示术语和特征选择和低级保存的混合规范.
- 使用最大化边际策略来增加类间样本距离.
主要成果:
- 拟议的方法在ASD数据集上实现了有希望的分类性能.
- 平均性能指标包括AUC为0.907,准确度为0.896,特异性为0.892,灵敏度为0.908.
- 该框架成功地确定了用于ASD诊断的潜在生物标志物.
结论:
- 开发的框架提供了使用sMRI进行ASD诊断的强大和有效的方法.
- 该方法通过有效处理复杂的神经成像数据,与现有技术相比,表现出更高的性能.
- 这种方法有可能改善ASD早期检测和识别关键诊断生物标志物.
更多相关视频
11:14A Novel Experimental and Analytical Approach to the Multimodal Neural Decoding of Intent During Social Interaction in Freely-behaving Human Infants
Published on: October 4, 2015
11.0K
08:17A Semantic Priming Event-related Potential ERP Task to Study Lexico-semantic and Visuo-semantic Processing in Autism Spectrum Disorder
Published on: April 12, 2018
10.6K
相关概念视频
Autism Spectrum Disorder
161
Autism spectrum disorder (ASD) is a neurodevelopmental condition marked by persistent deficits in social communication and interaction alongside restrictive and repetitive behaviors or interests. ASD is sometimes accompanied by intellectual impairment.
These core symptoms manifest differently among individuals, ranging from mild to severe. The disorder's complexity extends beyond its clinical presentation, encompassing a diverse range of biological, cognitive, and sociocultural influences.
These core symptoms manifest differently among individuals, ranging from mild to severe. The disorder's complexity extends beyond its clinical presentation, encompassing a diverse range of biological, cognitive, and sociocultural influences.
161
Modeling in Therapy
124
Modeling, a key technique in therapy, uses observational learning to help clients acquire and practice new skills by watching therapists demonstrate desired behaviors. This approach, rooted in Albert Bandura's concept of vicarious learning, plays a significant role in therapeutic interventions for various psychological conditions, including social anxiety, ADHD, and depression.
Participant Modeling
Participant modeling involves therapists demonstrating calm and effective behaviors in...
Participant Modeling
Participant modeling involves therapists demonstrating calm and effective behaviors in...
124
Learning Disabilities
219
Learning disabilities are cognitive disorders caused by neurological impairments that affect cognitive functions like language and reading, without indicating overall intellectual or developmental challenges. These disabilities differ from global intellectual or developmental disabilities as they are limited to distinct cognitive functions. Common learning disabilities include dysgraphia, dyslexia, and dyscalculia, each of which impacts unique aspects of learning.
Dyslexia
Dyslexia is a...
Dyslexia
Dyslexia is a...
219
