For the most part, we talk because we want to communicate with others: our friends, parents, teachers, even pets. Our voice carries our message to other people's ears. However, they are not the only one listening: when we talk, we can hear ourselves with our own ears as well. Do we pay attention to the sound of our own speech? Listening to what we say would be very useful, because we could listen for mistakes in our speech and make sure that we fix them so the right message gets across. How does our brain react when we hear ourselves make a mistake while talking?