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SUMMARY:A normative perspective on the diversity of dopamine neurons - Pro
 fessor Naoshige Uchida (Harvard University)
DTSTART;VALUE=DATE-TIME:20191204T160000Z
DTEND;VALUE=DATE-TIME:20191204T170000Z
UID:https://talks.ox.ac.uk/talks/id/516931fa-9410-441d-b33b-e9d5479e6ab4/
DESCRIPTION:Midbrain dopamine neurons play important roles in learning\, m
 otivation and movements. It has long been thought that dopamine neurons br
 oadcast a reward prediction error signal to drive learning to predict futu
 re outcomes. Recent studies have shown\, however\, that the signals sent b
 y dopamine neurons are more diverse than previously thought. For instance\
 , some dopamine neurons are activated by threatening stimuli but not by re
 ward. It has been postulated that the activity of some dopamine neurons ma
 y be correlated with movement kinematics (e.g. speed) or the distance to a
  reward location (or motivational value) but not with reward prediction er
 rors. These results have been taken as evidence that challenges the canoni
 cal view of dopamine signals based on reward prediction errors. In this ta
 lk\, I will try to present a normative perspective on these diverse dopami
 ne signals under the framework of the reinforcement learning theory.\nSpea
 kers:\nProfessor Naoshige Uchida (Harvard University)
LOCATION:Sherrington Library\, off Parks Road OX1 3PT
TZID:Europe/London
URL:https://talks.ox.ac.uk/talks/id/516931fa-9410-441d-b33b-e9d5479e6ab4/
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DESCRIPTION:Talk:A normative perspective on the diversity of dopamine neur
 ons - Professor Naoshige Uchida (Harvard University)
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