Skip Navigation
Click Subscribe to join the NIH Calendar of Events e-mail list or Sign In to add or modify your events.  

Event Details

    E-mail this page E-mail this page
 

EVENT DESCRIPTION  
 
Event Type:  Seminar (This is an NIH Science event)
 
Title:  Learning to Distinguish the Good from the Bad: Neural Systems Underlying Reinforcement Learning
 
Description:  The section on Learning and Decision making studies the neural circuitry and computational mechanisms that underlie reinforcement learning. Reinforcement learning (RL) is the behavioral process of learning what we like and do not like from experience. While some preferences are innate, many are learned over time. There are few areas in systems neuroscience where a theory has linked a neural mechanism to behavior as successfully as RL. The standard model of RL, developed in the mid-1990s, assumes that dopamine neurons code reward prediction errors (RPEs). RPEs are the difference between the reward that is received and the reward that was predicted. These dopaminergic RPEs are then communicated to the basal ganglia, specifically the striatum, because of its substantial dopamine innervation. The striatal neurons integrate RPEs to develop representations of the values of choices, i.e. our preferences. In contrast to the standard model we have recently shown that the amygdala, a structure in the medial temporal lobe, has a larger role in RL than the ventral striatum (VS). In addition, the role of the VS depends on the reward environment. When rewards are predictable, the VS has almost no role in learning whereas when rewards are less predictable the VS plays a larger role. These data outline a more specific role for the VS in RL than is attributed to it by current models. Given that the VS has been implicated in depression, particularly adolescent depression, this delineation of the contribution of the VS to normal behavior may help inform hypotheses about the mechanisms and circuitry underlying depression.
 
Series Name:  NIH Director's Seminar Series
 
Videocast:  Event will be videocast LIVE on the Web
 
Videocast URL:  http://videocast.nih.gov
  Event will be available in the videocast ARCHIVE
 
Special Instructions:  To arrange sign language interpretation for an event go to the Office
of Research Services (ORS) Interpreting Service Requests web page.
 

EVENT DATE/TIME  
 
Date/Time: 
Friday, October 27, 2017   12:00pm - 1:00pm Add To Outlook Calendar     Add To iCal Calendar     Add To Entourage Calendar
 
  Click on MS Outlook Calendar Icon (MS Outlook) or Mac iCal Calendar Icon (Mac iCal) or Entourage Calendar Icon (MS Entourage for MAC) to add an event into your Calendar. Need Help?

EVENT SPEAKER(S)  
 
Name:   Bruno Averbeck, Ph.D.
Title:   Chief, Section on Learning and Decision Making
Organization:   Laboratory of Neuropsychology, NIMH
 

EVENT SPONSOR(S)  
 
Organization(s):  [NIH] Office of the Director (OD)
 

EVENT LOCATION  
 
Location:  On the main NIH Campus
Building:  1
Room:  Wilson Hall
 
Street Address:  1 Center Drive
City:  Bethesda
State:  Maryland
Zip Code:  20892
 

EVENT CONTACT(S)  
 
Name:   Margaret McBurney
E-mail:   mmcburney@od.nih.gov
Phone:   (301) 496-1921
 
 
 
 
 
View by: Day | Week | Month | Year

Calendar Home Page | Feedback | NIH Home Page