Speaker：Qing Yu （俞青），中科院神經(jīng)所研究員
Time： 13:30-15:30, Dec. 15th, 2023
Venue：Room 1113, Wang Ke Zhen Bldg
Host: Lushan Zhu
Abstract
Working memory, the ability to temporarily maintain and manipulate information to serve flexible behavioral goals, is central to human intelligence and remains a fundamental research question in the field of cognitive neuroscience. Recent work has pointed to the involvement of a distributed cortical network, including sensory, parietal, and frontal cortex, in maintaining information during working memory. However, how this distributed network contributes to the internal generation and manipulation of memorized information has remained poorly understood. In this talk, I will present our recent work on characterizing the functional differences between sensory, parietal, and frontal cortex in working memory. Using functional magnetic resonance imaging (fMRI) and electroencephalography (EEG), I will first demonstrate a domain-general contribution of parietal cortex to information generation (i.e., mental imagery) and manipulation in working memory. Next, I will demonstrate how lateral frontal cortex functions fundamentally differently from medial temporal lobe and medial frontal cortex during memory maintenance and manipulation. Lastly, if time permits, I will demonstrate our simulation of the manipulation process using Recurrent Neural Networks (RNNs) and discuss the potential neuronal mechanisms.
Bio
俞青博士于2011年獲得北京大學(xué)心理學(xué)與數(shù)學(xué)學(xué)士雙學(xué)位，2016年獲得美國達特茅斯學(xué)院認知神經(jīng)科學(xué)博士學(xué)位，2016-2020年于美國威斯康星大學(xué)麥迪遜分校先后從事博士后與研究科學(xué)家的研究工作，2020年9月起擔任中國科學(xué)院腦科學(xué)與智能技術(shù)卓越創(chuàng)新中心（神經(jīng)科學(xué)研究所）研究員。俞青博士的工作結(jié)合多模態(tài)腦成像技術(shù)（功能性核磁共振成像、腦磁圖、頭皮腦電、顱內(nèi)腦電）、行為測量、數(shù)學(xué)模型等多學(xué)科手段，系統(tǒng)地探究記憶與想象的神經(jīng)機制。研究成果以第一作者或通訊作者發(fā)表于Current Biology (2019)，PLOS Biology (2020a,2020b)，Cell Reports (2023)，The Journal of Neuroscience (2018,2023)，Cerebral Cortex (2019)，NeuroImage (2017)等期刊。擔任Journal of Cognitive Neuroscience的顧問編輯。
2023-12-08