OxTalks is Changing
OxTalks will soon be transitioning to Oxford Events (full details are available on the Staff Gateway). A two-week publishing freeze is expected in early Hilary to allow all events to be migrated to the new platform. During this period, you will not be able to submit or edit events on OxTalks. The exact freeze dates will be confirmed as soon as possible.
If you have any questions, please contact halo@digital.ox.ac.uk
Q&A with Prof. Yael Niv: Model-based predictions for dopamine
Talk will be at 1pm (online link will be provided soon), afterwards, at 6pm everyone is welcome to join for a Q&A session with Prof. Yael Niv
Phasic dopamine responses are thought to encode a prediction-error signal consistent with model-free reinforcement learning theories. However, a number of recent findings highlight the influence of model-based computations on dopamine responses, and suggest that dopamine prediction errors reflect more dimensions of an expected outcome than scalar reward value. In this talk I will focus on these challenges to the scalar prediction-error theory of dopamine, and to the strict dichotomy between model-based and model-free learning, suggesting that these may better be viewed as a set of intertwined computations rather than two alternative systems. Alas, phasic dopamine signals, until recently a beacon of computationally-interpretable brain activity, may not be as simple as we once hoped they were.
Date:
9 April 2020, 18:00
Venue:
Venue to be announced
Speaker:
Professor Yael Niv (Princeton University)
Organiser:
Cortex Club (University of Oxford)
Part of:
Cortex Club - Oxford Neuroscience Society
Booking required?:
Not required
Audience:
Members of the University only
Editor:
Marta Blanco pozo
