In this introductory course we will be looking at the relation of psychological states, such as desires or memories, to the physical world. There are five sections in the course: Foundations (Dualism, Behaviorism and Central-State Materialism), Functionalism, Consciousness, Intentionality, and Personal Identity. What is the mind? Are mental states, such as beliefs and desires, memories and hopes, characteristics of a non-physical substance, or are they configurations of the physical world? And if we think that mental states are entirely physical, should we think of them as relating to the ways in which a person tends to behave, or are they rather states of the person's brain? Can a mental state be explained by its potential for causal relations with other mental states and with behavior? What is the relation between conscious experience and the brain? Is consciousness something over and above the ordinary biological functioning of the brain, or can it somehow be explained in biological terms? How can we explain our ability to think about the world? What is a person? These questions will be explored in the course of beginning to understand the nature of the mind.