2018年度“海外人才走進科學院活動”學術報告

時　間: 下午13:30—15:00

日　期:  2018年9月4日（周二） 

地　點: 心理所南樓六層會議室 

摘 要： 

　　Catecholamine (CA) neurotransmitters (e.g., dopamine) have long been implicated playing a critical role in executive control and decision making. Recently, evidence from neurodegenerative patients and healthy population suggested that CA also modulates language processing. However, the question of what kind of influence the CA might exert on language is still open. My recent study investigated this question by examining the effects of methylphenidate (MPH), which is a CA agonist, on EEG response related to language processing. The results demonstrated a clear neuropharmacological effect that CA neurotransmitters provide a relevance signal that enhances semantic integration operations, regardless of whether language processing is goal-relevant or not. The Basal Ganglia projections to Frontal Cortex might mediate the language processing effects of these neuropharmacological agents. These results contradicted the general hypothesis that CA promotes goal-relevant processes, while inhibiting goal-irrelevant information, suggesting that our capacity for language is a core system rooted in our biological system. 

報告者簡介： 

　　譚瀅瀅博士2008年本科畢業于北京大學心理學系，2015年獲得美國Rice University心理學系認知神經科學博士學位，現在荷蘭馬克思普朗克研究所心理語言學中心從事博士后研究。主要研究方向是人類語言加工的認知神經基礎，比如語言加工與工作記憶和認知控制功能的交互影響，以及特定神經藥物干預對語言加工的影響。主要研究方法包括結合EEG技術和使用心理藥理學手段，測量個體認知行為能力差異，考察健康被試和腦損傷病人（失語癥患者）的語義語法系統加工，與認知障礙的認知基礎。