Speaker: Yoanna Kurnianingsih
Title: Decision making across prospective gains and losses: Divergence of risk and value processing and convergence for value-to-utility transformations
Date: Friday 21 October, 1-2 pm
Venue: AS4/02-08 (Psychology Department Meeting Room)
The goal of the field of decision neuroscience is to understand the neural mechanisms that underlie individual choice behavior. Economic decision making across both gains and losses were investigated at both the behavioral and the neural levels. Independent studies investigated the effects of aging, sleep deprivation, and cognitive fatigue on economic decision making – identifying separable effects for all three states. Contrary to dominant economic theory, we found no significant correlations between risk preferences in the gains and losses domains, suggesting independence. In a fourth behavioral study, this independence was tested and confirmed using an intermixed-trial design. The fifth study, using fMRI, examined the neural mechanisms of the value-to-utility transformation, the process for converting between count and worth. We demonstrated, with independent within-study replication, that the dorsal anterior midcingulate cortex (daMCC) contains the information necessary to perform the value-to-utility transformation across both gains and losses.
About the Speaker:
Yoanna is a final year PhD student at NUS Psychology working with Dr. O’Dhaniel Mullette-Gillman investigating the neural basis of decision making.