Semantic memory(conceptual system)serves as a foundation for various cognitive processes including language,object recognition and use,reasoning,and problem *** is semantic knowledge represented in the brain?I will pr...
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Semantic memory(conceptual system)serves as a foundation for various cognitive processes including language,object recognition and use,reasoning,and problem *** is semantic knowledge represented in the brain?I will present a series of experiments in my lab that explored this issue,focusing on object shape and motion knowledge,as well as its functional and structural connectivity *** used a convergent of approaches including brain imaging studies with healthy,blind,and brain-damaged *** overall results indicate a large scale of network including left temporal,parietal,and frontal regions that underlies semantic processing.
荟萃分析(又称元分析)以量化方式综合实证研究结果,是积累整合证据并推进基础与应用研究的重要工具.在开放式科学这种新型研究实践下,荟萃分析是整合开放数据、进行科学推断的重要手段.但荟萃分析的过程繁复、方法多样,其执行上的严谨性对荟萃分析质量影响较大,因此报告的透明性和开放性对其结果的可重复性尤为重要.为了解中文荟萃分析报告规范性的现状,让更多研究者了解荟萃分析报告的规范性与透明性,提升荟萃分析报告的质量,本文以国际学界广泛使用的系统综述和荟萃分析优先报告条目(Preferred Reporting Items for Systematic reviews and Meta-Analyses,PRISMA)以及开放式科学理念为基础,结合基于效应量的荟萃分析报告特点,拟定《开放与可重复荟萃分析的报告清单》(Preferred Reporting Items for Open and Reproducible Metaanalysis,PRIOR-MA),并以心理学中的荟萃分析为例,对近五年国内发表的68篇中文荟萃分析的方法和结果部分进行回顾.基于结果,本文建议荟萃分析报告需要在以下方面进一步加强其开放性与透明性:文献搜索的时间及限制、研究筛选和数据收集过程的细节、文章筛选的流程图、效应量转换的细节、单个研究偏倚状况的评估等.本文为开放式荟萃分析提供了一个较为全面的报告清单(PRIOR-MA),为未来荟萃分析研究提供了参考.
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