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SUMMARY:BEACON Seminar: Some neuro-computational models of social decision
 -making and learning - Christoph Korn (Heidelberg University)
DTSTART;VALUE=DATE-TIME:20230822T130000
DTEND;VALUE=DATE-TIME:20230822T140000
UID:https://talks.ox.ac.uk/talks/id/07a582e3-53dc-4be4-9716-864653d44e99/
DESCRIPTION:ABSTRACT\n\nIn social interactions\, humans often resort to he
 uristic decision-making and learning strategies. These strategies can be d
 escribed with reinforcement learning models and can be linked to parts of 
 the medial prefrontal cortex (MPFC).\n\nFirst\, I will present a series of
  studies that specify how humans combine optimal and heuristic solutions t
 o maximize rewards for themselves and for others in multistep decision sce
 narios. Model-based analyses of fMRI data suggest a role of the MPFC in th
 e computation of the employed policies and of the uncertainty associated w
 ith relying on these policies.\n\nSecond\, I will describe experiments sho
 wing how humans learn about other people’s character traits. The best-fi
 tting models combine principles derived from reinforcement learning algori
 thms with participants’ world knowledge about the distributions and inte
 rrelations of different character traits. I will present an fMRI study tes
 ting if these interrelations between character traits are represented as 
 “grid-like code” in the MPFC.\nTaken together\, the to-be-presented pr
 ojects aim at providing neuro-computational accounts of the trade-offs in 
 complex social decision-making and learning processes. I will briefly outl
 ine ongoing and future research projects that build on these insights to e
 lucidate how social decision-making and learning can go awry in psychiatri
 c populations.\n\nSpeakers:\nChristoph Korn (Heidelberg University)
LOCATION:New Radcliffe House (Seminar Room\, New Radcliffe House (2nd Floo
 r)\, Department of Experimental Psychology\, Woodstock Road\, Oxford OX2 6
 GG)\, Walton Street OX2 6NW
TZID:Europe/London
URL:https://talks.ox.ac.uk/talks/id/07a582e3-53dc-4be4-9716-864653d44e99/
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DESCRIPTION:Talk:BEACON Seminar: Some neuro-computational models of social
  decision-making and learning - Christoph Korn (Heidelberg University)
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