But currently available evidence suggests otherwise. This chapter gave a quick sketch of why the best explanation of mental processes such as perception, memory, learning, and drug experiences is that they are processes of the brain. I refrained from going into a lot more detail about how the brain supports these kinds of thinking because I wanted the reader to grasp the overall structure of the argument that minds are brains. Much more detailed explanations can be found in chapters that follow and in the extensive literature in cognitive neuroscience.