Abstract
The fast replay of sequences of neural representations has been suggested as supporting learning and online planning. However, it has largely been studied in spatial tasks in rodents. I will show how we came upon reverse replay during our latest attempt to use the decoding of MEG data to capture the process of human model-based planning in a non-spatial sequential decision-making problem (Kurth-Nelson et al, Neuron, 2016). During epochs in which our subjects were planning, their brains spontaneously visited representations of approximately four states in the problem in fast sequences lasting on the order of 120 milliseconds. These sequences followed backward trajectories along the permissible paths in the task.
About Neuroscience Seminars
Neuroscience seminars at the QBI play a major role in the advancement of neuroscience in the Asia-Pacific region. The primary goal of these seminars is to promote excellence in neuroscience through the exchange of ideas, establishing new collaborations and augmenting partnerships already in place.
Seminars in the QBI Auditorium are held on Wednesdays at 12-1pm, which are sometimes simulcast on Zoom (with approval from the speaker). We also occassionally hold seminars from international speakers via Zoom. The days and times of these seminars will vary depending on the time zone of the speaker. Please see each seminar listed below for details.
