各位老师，您好：

由实验室吴思老师邀请了Division of Biopsychology, University  of Zurich的Björn  Rasch教授来实验室做报告。Björn Rasch教授希望能在实验室找到长期的合作者。报告信息如下，欢迎感兴趣的老师和同学来听。

报告时间：3月26日(星期一) 下午两点

报告地点：脑成像中心三楼大会议室

报告题目：Maintaining Memories by  Reactivation

报告摘要：Memory formation is a highly dynamic  process. According to a widely held concept, the formation of long-term memories  relies on a redistribution of newly acquired memory representations from  temporary stores to neuronal networks supporting long-term storage. It is  assumed that this process of system consolidation takes place preferentially  during sleep as an off-line period during which memories are spontaneously  reactivated and redistributed in the absence of interfering external inputs.  First, I would like to provide evidence showing that sleep is beneficial for the  formation of memories. Second, I aim at discussing different mechanisms proposed  to underlie the sleep-related memory benefits, with a special focus on memory  reactivations during sleep. Third, I will compare sleep-related reactivation  processes with reactivation by retrieval or a reminder during wakefulness, which  leads to a transient destabilization of memory traces. I will propose that  reactivation might serve distinct functions in the maintenance of long-term  memories depending on the brain state, allowing for updating of existing  memories during wakefulness and integration of newly acquired knowledge in  pre-existing knowledge networks during sleep. 

报告人简介：

Prof. Björn  Rasch is at present a Professor of the Swiss National Science Foundation  (SNSF) at the University of Zürich, Switzerland. He has published 25 peer  reviewed articles, 11 as first and 3 as last author on Science, Nature  Neuroscience, Proc.Natl.Acad.Sci.U.S.A, Neuropsychopharmacologyand  other influential journals. He also wrote 2 Books and 2 Book  Chapters.

    此致

敬礼！                                        

                认知神经科学与学习国家重点实验室                                                             2012.03.19