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Hierarchical Reinforcement Learning in Behavior and the Brain

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Ph.D Thesis José Joaquim Fernandes.pdf13.44 MBAdobe PDF Ver/Abrir

Resumo(s)

Reinforcement learning (RL) has provided key insights to the neurobiology of learning and decision making. The pivotal nding is that the phasic activity of dopaminergic cells in the ventral tegmental area during learning conforms to a reward prediction error (RPE), as speci ed in the temporal-di erence learning algorithm (TD). This has provided insights to conditioning, the distinction between habitual and goal-directed behavior, working memory, cognitive control and error monitoring. It has also advanced the understanding of cognitive de cits in Parkinson's disease, depression, ADHD and of personality traits such as impulsivity.(...)

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Dissertation presented to obtain the Ph.D degree in Biology, Neuroscience

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Universidade Nova de Lisboa. Instituto de Tecnologia química e Biológica.

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