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SUMMARY:Computational Neuroscience Journal Club - Kris Jensen and Georgia 
 Turner
DTSTART:20210629T140000Z
DTEND:20210629T153000Z
UID:TALK161293@talks.cam.ac.uk
CONTACT:Jake Stroud
DESCRIPTION:Please join us for our fortnightly journal club online via zoo
 m where two presenters will jointly present a topic together. The next top
 ic is ‘Mental simulation in human reinforcement learning’ presented by
  Kris Jensen and Georgia Turner.\n\nZoom information: https://us02web.zoom
 .us/j/84958321096?pwd=dFpsYnpJYWVNeHlJbEFKbW1OTzFiQT09 Meeting ID: 841 978
 8 6178 Passcode: 659046\n\nSummary:\n\nBoth animals and artificial agents 
 are capable of learning from their interactions with an environment in a r
 einforcement learning setting. However\, humans and other animals are also
  known to learn ‘offline’ from prior experiences which can be flexibly
  combined with information from more recent events. In this journal club\,
  we present the ‘Dyna’ algorithm (Sutton 1990) which formalizes such o
 ffline reinforcement learning via ‘mental simulation’ of prior events.
  We also describe a normative framework for identifying what prior experie
 nce should be replayed at any given moment in time to maximize performance
  (Mattar & Daw 2018)\, and we present experimental evidence for such exper
 ience replay and its structure (Gershman et al. 2014\; Liu & Mattar et al.
  2021).\n\nSutton\, R. S. (1991). Dyna\, an integrated architecture for le
 arning\, planning\, and reacting. ACM Sigart Bulletin\, 2(4)\, 160-163.\n\
 nGershman\, S. J.\, Markman\, A. B.\, & Otto\, A. R. (2014). Retrospective
  revaluation in sequential decision making: A tale of two systems. Journal
  of Experimental Psychology: General\, 143(1)\, 182.\n\nMattar\, M. G.\, &
  Daw\, N. D. (2018). Prioritized memory access explains planning and hippo
 campal replay. Nature neuroscience\, 21(11)\, 1609-1617.\n\nLiu\, Y.\, Mat
 tar\, M. G.\, Behrens\, T. E.\, Daw\, N. D.\, & Dolan\, R. J. (2021). Expe
 rience replay is associated with efficient nonlocal learning. Science\, 37
 2(6544).
LOCATION:Online on Zoom
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