Abstract: Class concept is an important part of our daily life, and it can be divided into three levels, the superordinate level, the basic level and the subordinate level. According to the“oddball” paradigm, traditional behavior method is explored by using domestic provinces, cities, scenery spots and a few animals and plants as experimental?materials. In the present study, the relationship between different class concepts and information retrieval is attempted to be discussed. The preference processing of the basic level is checked. It is found that preference processing features between the class concept hierarchies will be affected by different task paradigms and the semantic priming between class concept hierarchies has direction.

Key words: preference processing of basic level, information retrieval, cognitive mechanism

摘要： 类概念是日常生活的重要组成部分，类概念可划分为上位水平、基本水平和下位水平。根据“oddball”范式，该课题使用国内省份、城市、景点以及少量动物和植物为实验材料，用传统的行为研究技术为实验手段，设计了语义启动任务，试图探讨启动范式下不同的类概念层级与信息提取之间的关系，研究提问线索对信息检索粒度的影响以及不同层次概念提取的差异，观察基本层加工优势的存在。实验结果表明，类概念层级间的优先加工会受到任务范式的影响，不同类概念水平之间的语义启动具有方向性。

关键词: 基本水平加工优势, 信息检索, 认知机制