基于深度学习与重建规范化进行的青少年流体智力评分的预测
TingQian Cao1, Xiang Liu2, Jiawei Luo2
1West China Hospital of Sichuan University.
Research square
|July 1, 2024
概括
这项研究开发了使用MRI扫描的青少年流体智能的预测模型. 与传统方法相比,自动编码器模型显示出更高的性能,突出了基于性别的预测准确性差异.
科学领域:
- 神经科学是一个神经科学.
- 机器学习 机器学习
- 发展心理学 发展心理学
背景情况:
- 流动智能对于认知发展和学术成功至关重要.
- 神经成像技术提供了对智力的神经基础的洞察.
- 预测建模可以提高我们对认知能力的个体差异的理解.
研究的目的:
- 开发一种使用T1权重磁共振成像 (MRI) 的青少年流体智力评分的预测模型.
- 为了评估自动编码器模型的预测性能,并对流体智能进行重建规范化.
- 将自动编码器与多层感知子 (MLP) 和经典机器学习模型的有效性进行比较.
主要方法:
- 利用T1加权的MRI数据和来自11,534名青少年的流体智力得分 (ABCD数据发布3.0).
- 使用FreeSurfer细分,从148个感兴趣地区 (ROI) 提取了604个特征.
- 使用自动编码器 (AE),MLP和经典的机器学习模型进行预测,比较 7:3 列车测试分割的性能.
主要成果:
- 自动编码模型在预测流体智能分数方面取得了最佳性能 (PCC = 0.209 ± 0.02,MSE = 105.212 ± 2.53).
- 具有重建规范化的自动编码器显著超过了MLP和经典模型.
- 所有模型都在女性青少年中表现得比男性青少年更好,这表明神经机制的性别相关差异.
结论:
- 通过使用自动编码器,在大脑结构特征和流体智能之间建立了弱但稳定的相关性.
- 未来的研究应该探索集合回归和多模式数据,以提高预测准确度.
- 了解流体智力的神经成像相关的性别差异对于有针对性的干预是必不可少的.
相关概念视频
02:07Improving Translational Accuracy
10.0K
Base complementarity between the three base pairs of mRNA codon and the tRNA anticodon is not a failsafe mechanism. Inaccuracies can range from a single mismatch to no correct base pairing at all. The free energy difference between the correct and nearly correct base pairs can be as small as 3 kcal/ mol. With complementarity being the only proofreading step, the estimated error frequency would be one wrong amino acid in every 100 amino acids incorporated. However, error frequencies observed in...
10.0K
01:27Associative Learning
333
Associative learning is a fundamental concept in behavioral psychology, wherein a connection is established between two stimuli or events, leading to a learned response. This process is critical in understanding how behaviors are acquired and modified. Conditioning, the mechanism through which associations are formed, can be divided into two main types: classical conditioning and operant conditioning, each elucidating different aspects of associative learning.
Classical conditioning, also known...
Classical conditioning, also known...
333
01:30Cognitive Development During Adulthood
87
Cognitive development continues throughout adulthood, undergoing significant shifts across early, middle, and late stages. Individual transition occurs from adolescent idealism to pragmatic and adaptable thinking in early adulthood. During this period, individuals learn to integrate personal beliefs with the recognition that other perspectives are equally valid. Exposure to the complexities of modern society, diverse experiences, and higher education contribute to this adaptive thought process,...
87
01:03Prediction Intervals
2.2K
The interval estimate of any variable is known as the prediction interval. It helps decide if a point estimate is dependable.
However, the point estimate is most likely not the exact value of the population parameter, but close to it. After calculating point estimates, we construct interval estimates, called confidence intervals or prediction intervals. This prediction interval comprises a range of values unlike the point estimate and is a better predictor of the observed sample value, y.
However, the point estimate is most likely not the exact value of the population parameter, but close to it. After calculating point estimates, we construct interval estimates, called confidence intervals or prediction intervals. This prediction interval comprises a range of values unlike the point estimate and is a better predictor of the observed sample value, y.
2.2K
01:25Cattell's Theory of Intelligence
6.4K
Raymond Cattell, along with John Horn, made significant contributions to our understanding of intelligence by distinguishing between two types: fluid intelligence and crystallized intelligence.
Fluid intelligence involves the capacity to solve new problems and adapt to unfamiliar situations. It's the type of intelligence individuals use when they encounter a novel problem or puzzle that requires innovative thinking. For instance, figuring out how to operate a new gadget relies heavily on...
Fluid intelligence involves the capacity to solve new problems and adapt to unfamiliar situations. It's the type of intelligence individuals use when they encounter a novel problem or puzzle that requires innovative thinking. For instance, figuring out how to operate a new gadget relies heavily on...
6.4K
01:25Multiple Regression
3.0K
Multiple regression assesses a linear relationship between one response or dependent variable and two or more independent variables. It has many practical applications.
Farmers can use multiple regression to determine the crop yield based on more than one factor, such as water availability, fertilizer, soil properties, etc. Here, the crop yield is the response or dependent variable as it depends on the other independent variables. The analysis requires the construction of a scatter plot...
Farmers can use multiple regression to determine the crop yield based on more than one factor, such as water availability, fertilizer, soil properties, etc. Here, the crop yield is the response or dependent variable as it depends on the other independent variables. The analysis requires the construction of a scatter plot...
3.0K