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Our lab studies the brain mechanisms of flexible reinforcement learning and value-based decisions (i.e. decisions involving effort, delay, and risk), with a focus on the contributions of frontal cortex. We also investigate neural and behavioral adaptations following chronic intravenous drug self-administration and voluntary alcohol experience. Another major goal of the lab is to contribute novel paradigms that readily translate across model systems. We use a variety of approaches to study these questions (see Techniques).