近年来,智力落后的定义多次修订,智力落后的成因及智力落后者的缺陷究竟在何处,一直是心理学界争论的焦点问题。本文从PASS理论入手,分析了智力落后的成因和本质,揭示了智力落后研究的认知心理学新走向,为今后智力落后研究的进一步深化提供理论参考。 In recent years, the definition of mental retardation has been revised several times, the causes of mental retardation and the defects of intellectual laggards where exactly, has been the focus of debate in the psychology community. This article starts with PASS theory, analyzes the causes and essence of mental retardation, reveals the new trend of cognitive psychology in mental retardation research, and provides theoretical reference for the further deepening of intellectual backwardness research in the future.