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SUMMARY:The role of the ventral pallidum and globus pallidus in motivation
  and outcome evaluation - Dr Marcus Stephenson-Jones
DTSTART:20200515T150000Z
DTEND:20200515T163000Z
UID:TALK142315@talks.cam.ac.uk
CONTACT:Louise White
DESCRIPTION:The Zangwill Club continues online in these turbulent times wi
 th the second talk of the Term via Zoom. \n \nThis Friday 15th of May at 4
  pm Greenwich Time we will have the Second Zangwill Lockdown Talk by  Dr M
 arcus Stephenson-Jones\n \n  Title:  "The role of the ventral pallidum and
  globus pallidus in motivation and outcome evaluation."  \n\n" The basal g
 anglia play a critical role in reinforcement learning but while a lot is k
 nown about the mechanisms for learning\, comparatively little is known abo
 ut what is being learnt in these nuclei. To address this our lab is intere
 sted in understanding what different populations of basal ganglia output n
 uclei encode and determining how they contribute to behaviour. In this tal
 k I will present our recent findings that characterized two output nuclei\
 , the ventral pallidum and the habenula-projecting globus pallidus. I’ll
  show that the activity of separate populations of neurons in the ventral 
 pallidum are correlated with incentive and aversive salience and these pop
 ulations drive motivated behaviour. In contrast\, I’ll show neurons in t
 he habenula-projecting globus pallidus encode reward prediction errors and
  are critical for evaluating action outcomes.   " \n \n*The Zangwill  Club
  will start  at 4pm with an afternoon coffee or tea (virtually served) and
  split between 2 rooms\, the "Talk to Marcus Room" and the "social have a 
 cuppa room".  At 4.30pm we will start the Talk (one Hour) followed by 20-3
 0 minutes of questions as usual.*\n \nMini Bio\, Dr Marcus Stephenson-Jone
 s \n \nPhD with Sten Grillner at the Karolinska institute in Sweden\, stud
 ied the evolution of the basal ganglia\n \nPostdoc with Bo Li at Cold Spri
 ng harbor\, investigated the role of the basal ganglia in motivation and e
 valuating action outcomes.\n \nGroup leader at the Sainsbury Wellcome Cent
 re\, studying reinforcement learning mechanisms in the basal ganglia.\n \n
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LOCATION:virtually served - Zoom
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