The relationship between mind and brain is studied by several disciplines including Philosophy, Psychology, Neuroscience, and Computer Science. In this class we will consider three questions about the nature of the mind, ultimately drawing on work from several of these disciplines. 1) What is the cognitive architecture of the mind ? can human cognition be understood as a form of computation, and, if so, which of several competing models of computation is most appropriate? 2) How are we so often able to correctly attribute mental states to others ? are we making predictions based on the application of a folk-psychological theory, or are we simulating what we would do in their situation? 3) How should we reconcile our apparent experience of a 3D, continuous, steady and detailed world with the fact that the data delivered by the retina is 2D, discontinuous, shaky and largely without detail?