信息保持、短时存贮与执行控制的脑模型

工作记忆的脑机制是认知神经科学研究的重要问题。研究者在分析大量脑成像研究数据的基础上，创建了许多解释工作记忆神经基础的模型。Smith和Jonides发展了工作记忆成分结构模型和贮存与执行加工分离模型。Postle和D’Esposito建构了工作记忆相对表征混合模型，D’Esposito, Postle和Rypma阐述了工作记忆加工阶段动态模型。Fletcher和Henson提出工作记忆额叶分区整合理论。该文通过对上述模型或理论的评价，总结了工作记忆脑成像研究中存在的问题，展望了该研究领域的发展趋势。

Brain Models of Maintenance,Temporal Storage and Executive Control

Brain mechanism of working memory (WM) is the important study issue of cognitive neuroscience. Based on analyzing much neuroimaging studies’ data, researchers established various brain models to explain the neural basis of WM. Smith & Jonides developed the updated architecture model and the dissociated model of storage versus executive processes in frontal lobe. Postle & D’Esposito constructed the WM hybrid model of comparable representation. D’Esposito, Postle & Rypma demonstrated the WM dynamic model of processes’ stages. Fletcher & Henson proposed a WM integrated theory of frontal areas. The present paper summarized several problems existed in the neuroimaging study of WM, and prospected the developmental tendency in the research area via reviewing above models or theories.