主講人：范津 紐約城市大學(xué)教授

時(shí)間：2016年12月9日14:00

地點(diǎn)：徐匯校區(qū)四教A101  

舉辦單位：教育學(xué)院

主講人簡(jiǎn)介：

紐約市立大學(xué)皇后學(xué)院心理學(xué)系及紐約市立大學(xué)研究生院終身教授，西奈山醫(yī)學(xué)院精神病學(xué)系及神經(jīng)科學(xué)系神經(jīng)影像實(shí)驗(yàn)室主任，中國(guó)科學(xué)院海外評(píng)審專(zhuān)家。 

講座內(nèi)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.