摘要
Miller(1 95 6 )通过研究发现 ,短时记忆 (STM)的容量大小为 7± 2个单位。但在随后的 5 0多年 ,Miller的理论受到了质疑。Cowan通过总结大量的研究 ,提出了纯净的短时记忆容量和混合的短时记忆容量概念 。
Miller (1956) proposed the “magical number seven' as the capacity for short term memory. While after almost 50 years, Cowan summarized a lot of researches to propose the “magical number four' as the capacity for short term memory. Cowan distinguished two concepts: pure capacity limits and compound capacity limits. Furthermore Cowan advanced four conditions in which the pure capacity limits can be observed, they are: capacity limits estimated with information overload; capacity limits estimated by blocking long term memory recoding, passive storage and rehearsal; capacity limits estimated with performance discontinuities; capacity limits estimated with indirect effects. There are a lot of researches prove these conditions and support Cowan's theory.
出处
《北京大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2004年第4期676-682,共7页
Acta Scientiarum Naturalium Universitatis Pekinensis
基金
摩托罗拉实验室
国家自然科学基金 (30 1 70 32 2 )
国家攀登计划项目 (95 专 0 9)资助项目
