Computational modeling and psychophysics of attention, learning, and decision-making
My lab uses computational modeling and behavioral experimental techniques to understand the functional link between intelligent behavior and neurobiological mechanisms. We focus on cognitive functions such as learning, decision-making, perception, active sensory processing, emotional processing, and social games theory. Mathematically, we adopt as well as develop new tools from Bayesian probability and statistical theory, optimal/stochastic control theory, reinforcement learning, stochastic processes, and dynamical systems analysis. In addition to combining mathematical modeling with human behavioral experiments in the lab, we also collaborate with neuroscience labs that collect neurophysiological data in rodents, monkeys, as well as human fMRI and EEG.
Dayanik, S & Yu, AJ (2011). Negotiating speed-accuracy tradeoff in sequential identification under a stochastic deadline. Under review.
Shenoy, P & Yu, A J (2011). Rational decision-making in inhibitory control. Frontiers in Human Neuroscience, 5:48. doi: 10.3389/fnhum.2011.00048.
Yu, A J & Cohen, J D (2009). Sequential effects: Superstition or rational behavior? Advances in Neural Information Processing Systems,21: 1873-1880. MIT Press, Cambridge, MA.
Liu, S, Yu, A J, & Holmes, P (2009). Dynamical analysis of Bayesian inference models for the Eriksen task. Neural Computation, 21: 1520-1553.
Yu, A J, Dayan, P, & Cohen J D (2009). Dynamics of attentional selection under conflict: Toward a rational Bayesian account. Journal of Experimental Psychology: Human Perception and Performance, 35: 700-717.
Frazier, P, Yu, A J (2008). Sequential hypothesis testing under stochastic deadlines. Advances in Neural Information Processing Systems,20: 465-72. MIT Press, Cambridge, MA.
Yu, A J. (2007) Adaptive behavior: Humans act as Bayesian learners. Current Biology, 17: R977-R980.
Cohen, J D, McClure, S M, and Yu, A J (2007). Should I stay or should I go? How the human brain manages the tradeoff between exploitation and exploration. Philosophical Transactions of the Royal Society B: Biological Sciences, 362: 933-942.
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