视觉工作记忆中有限资源分配的机制  

Mechanism for the Allocation of Limited Resource in Visual Working Memory

作　　者：罗良[1] 林崇德[2] 

机构地区：[1]北京师范大学认知神经科学与学习国家重点实验室,北京100875 [2]北京师范大学发展心理研究所,北京100875

出　　处：《教育科学》2009年第6期72-75,共4页Education Science

基　　金：教育部长江学者和创新团队发展计划;国家自然科学基金(批准号:30670717);国家社科基金"十一五"规划重点课题(批准号:ABA08004)资助项目

摘　　要：针对人类视觉工作记忆有限资源分配的机制,研究者进行了丰富的行为和脑机制研究。这些研究主要从三个方面开展:客体复杂性与视觉工作记忆广度的关系,视觉工作记忆中客体表征的精准性与资源分配机制,视觉工作记忆广度有限性的大脑生理基础。仔细分析这些研究可以发现,依然存在一些问题没有得到很好的解决:视觉工作记忆中是否存在固定数量的"贮存槽"以及资源的分配是否具有灵活性;客体复杂性与客体表征精准性之间的关系;视觉工作记忆有限资源动态分配的大脑机制。解决这些问题将是视觉工作记忆未来的研究方向。To explore mechanism for the allocation of limited resource in visual working memory, the researchers conducted a wealth of behavioral and imaging studies. These studies can be divided into three areas： the relationship between object complexity and visual working memory capacity, precision of object representation in visual working memory, and physiological basis of capacity limit of visual working memory. Through analyzing these studies, we could find there is still some question has not been resolved： whether there is a fixed number of ＂slots＂ in visual working memory as well as whether the flexibility in the allocation of limited resource resources, relationship between object complexity and precision of object representation, and brain mechanism for the dynamic allocation of limited resource in visual working memory.

关 键 词：视觉工作记忆 客体复杂性 客体表征精准性 

分 类 号：G40-02[文化科学—教育学原理]