0


遗传和成像数据的大数据分析

Large data analysis of genetic and imaging data
课程网址: http://videolectures.net/BIDSAconference2016_rustichini_large_dat...  
主讲教师: Aldo Rustichini
开课单位: 明尼苏达大学
开课时间: 2016-09-28
课程语种: 英语
中文简介:
近年来,对经济和战略行为的神经经济学分析提供了对影响这种行为的生物途径的洞察,以及对个体差异的洞察(对于经济分析中的经典特征,如对风险的态度和时间折扣,以及个性特征和智力)。主要基于全基因组关联研究(GWAS)的遗传分析提供了有用的关联定量估计;然而,重要单核苷酸多态性(SNP)的鉴定仅限于纯相关结果。由于经济分析所需表型的高度多基因性,以及成像和遗传数据的高维性,识别途径的任务变得极其困难。另一方面,当经济学家不得不提出政策建议时,正确理解与GWA相关的SNP行为的生物学途径对于他们来说是至关重要的。神经数据(首先是结构和功能成像数据)和遗传数据的整合对于未来的进展至关重要。最根本的困难是表型的多基因性质使得候选基因方法特别不充分和误导。基因集富集分析(GSEA)方法提供了一种有希望的替代方法,并已成功应用。我们将概述一种基于分层贝叶斯模型与适应贝叶斯方法的GSEA思想集成的策略。
课程简介: In recent years neuroeconomic analysis of economic and strategic behavior has provided insights into the biological pathways affecting this behavior, and insights into the individual differences (for classical features in economic analysis, such as attitude to risk and time discounting, but also of Personality Traits and Intelligence). Genetic analysis mostly based on Genome Wide Association Studies (GWAS) has provided useful quantitative estimates of the association; the identification of significant Single Nucleotide Polymorphisms (SNP’s) however is limited to purely correlational results. The task of identifying pathways is made extremely difficult by the highly polygenic nature of the phenotypes of interest for economic analysis, and by the high dimensions of both imaging and genetic data. On the other hand, a correct understanding of the biological pathways to behavior of SNP’s identified with GWAS to behavior is essential for economists when they have to suggest policies. An integration of the neural data (in first place, structural and functional imaging data) and genetic data is essential for future progress. The fundamental difficulty is that the polygenic nature of the phenotypes makes the candidate gene approach particularly inadequate and misleading. The method of Gene Set Enrichment Analysis (GSEA) provides a promising alternative, and has already been successfully used. We will outline a strategy based on the integration of hierarchical Bayesian models with ideas form GSEA adapted to Bayesian methodology.
关 键 词: 神经经济学分析; 遗传分析; 成像和遗传数据
课程来源: 视频讲座网
数据采集: 2021-12-27:zkj
最后编审: 2021-12-27:zkj
阅读次数: 35