In day-to-day life, producing and comprehending language appears effortless - we can do it for hours on end, often while engaging in other activities. But in reality, it is breathtaking to consider the amount of information that must be processed, and the different types of knowledge that must be integrated. Here are just a few of the things that we accomplish in the course of normal language comprehension: First, we have to locate the beginnings and endings of words from a continuous stream of sound. We have to make on-the-fly decisions about how the words should be put together in phrases, often deciding between multiple possibilities. And most complex of all, we have to integrate information from the linguistic stream together with contextual information, including the visual scene, information about the speaker's state of mind or goals, our past experiences of the world, and so on. Below, you can read about some of the specific questions we have addressed in our lab: