身体活动和认知轨迹的结果:一种机器学习方法
Bettina Barisch-Fritz1, Jay Shah2, Jelena Krafft3
1Karlsruhe Institute of Technology, Karlsruhe, Germany. bettina.barisch-fritz@kit.edu.
概括
机器学习模型在预测痴呆症 (PwD) 患者的认知衰退方面取得了中等成功. 坚持和日常生活活动是关键预测因素,但需要更多的研究.
科学领域:
- 老年学是一门学科.
- 神经科学是一个神经科学.
- 计算机科学 计算机科学
背景情况:
- 身体活动 (PA) 可能会影响痴呆症 (PwD) 患者的认知功能.
- 机器学习 (ML) 在痴呆症研究中越来越多地使用,但其对认知衰退的预测价值被理解得更少.
- 这项研究探讨了ML用于识别与经过PA干预的PWD认知变化相关的因素.
研究的目的:
- 在PWD中应用ML技术来区分认知衰退者和非衰退者.
- 为了识别与多式联络PA干预相关的变量,从而预测认知变化.
- 评估ML在理解PWD认知轨迹中的实用性.
主要方法:
- 一项随机对照试验的二次分析,该试验使用了16周的多种模式的PA干预.
- 支持矢量机 (SVM) 模型用于认知衰退/非衰退的分类.
- 预测因素包括干预坚持,身体表现和健康状况;结果是认知表现.
主要成果:
- ML模型实现了准确度和AUC值在40.6-75.6%之间.
- 干预组和对照组之间没有观察到认知衰退率的显著差异.
- 确定的主要预测因素是日常生活表现,坚持和流动性的活动.
结论:
- ML模型显示了对认知衰退的中度预测性能.
- 坚持和日常生活活动的表现成为潜在的预测因素.
- 建议进行更大规模的研究,包括情绪健康和生物标志物,以提高预测准确度.
相关概念视频
Information Processing Approach
30
The information-processing theory of cognitive development centers on fundamental mental processes, including attention, memory, and problem-solving skills. Researchers in this field examine how cognitive abilities, such as working memory, evolve and influence children's overall development. Studies indicate that children with stronger working memory tend to excel in reading comprehension, math, and problem-solving compared to peers with less efficient memory skills. Low working memory is...
30
Cognitive Development During Adulthood
50
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,...
50
Cognitivism
1.4K
Cognitive psychology emerged as a significant field in the mid-20th century. It focused on understanding humans' internal mental processes. This approach emphasizes how people perceive, remember, think, and solve problems—elements critical to human cognition.
Previously dominated by behaviorism, which prioritized observable behaviors and largely ignored mental processes, psychology transformed in the 1950s. Cognitive psychologists argue that understanding how we think and process...
Previously dominated by behaviorism, which prioritized observable behaviors and largely ignored mental processes, psychology transformed in the 1950s. Cognitive psychologists argue that understanding how we think and process...
1.4K
Cognitive Learning
219
Cognitive learning is based on purposive behavior, incidental learning, and insight learning.
E. C. Tolman's theory of purposive behavior emphasizes that much behavior is goal-directed. He argued that to understand behavior, we must look at the entire sequence of actions leading to a goal. For instance, high school students study hard, not just due to past reinforcement but also to achieve the goal of getting into a good college.
Tolman introduced the idea that behavior is influenced by...
E. C. Tolman's theory of purposive behavior emphasizes that much behavior is goal-directed. He argued that to understand behavior, we must look at the entire sequence of actions leading to a goal. For instance, high school students study hard, not just due to past reinforcement but also to achieve the goal of getting into a good college.
Tolman introduced the idea that behavior is influenced by...
219


