主讲人：范津 纽约城市大学教授

时间：2016年12月9日14:00

地点：徐汇校区四教A101  

举办单位：教育学院

主讲人简介：

纽约市立大学皇后学院心理学系及纽约市立大学研究生院终身教授，西奈山医学院精神病学系及神经科学系神经影像实验室主任，中国科学院海外评审专家。 

讲座内容：

Cognitive control refers to the processes that permit selection and prioritization of information processing in different cognitive domains to reach the conscious mind. Although previous studies have suggested that the capacity of cognitive control is limited, a direct quantification of this capacity has not been attempted. In this behavioral study, we manipulated the information rate of cognitive control by parametrically varying both the uncertainty of stimuli measured as information entropy and the exposure time of the stimuli. We used the relationship between the participants’ response accuracy and the information rate in bits per second (bps) in the model fitting to estimate the capacity of cognitive control. We found that the capacity of this higher-level function of cognitive control was approximately 3 to 4 bps which is remarkably low. Theoretical significance and clinical implications of the quantification of the capacity of cognitive control will be discussed.