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Rafael Polania

Post-doctoral Research Scholar

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Unlike perceptual decisions, which are based on objective states of the world, economic decisions are based on subjective preferences and are often driven by internal brain states. However, the mechanisms and neural underpinnings of how these decisions emerge remain poorly understood. My research is focused on disentangling how humans make these types of decisions via combinations of computational modeling, brain imaging (EEG and fMRI) and brain stimulation (tDCS, tACS, TMS).
During my visit at Columbia I will work together with Michael Woodford on the theoretical proposal that well-constrained observer models of efficient encoding and Bayesian decoding can be used to understand basic mechanisms of preference estimations and therefore might be helpful to understand the sources of variability in economic decisions.

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