Neurolinguistics is the study of the neural mechanisms in the human brain that are involved in language comprehension, production, and acquisition. It is an interdisciplinary field that uses techniques such as neuroimaging, electrophysiology, and lesion studies to investigate topics such as the localization of language processes in the brain, the time course of language processing, and experimental paradigms involving language tasks. Some important early figures in the field were Broca, who linked expressive language ability to the left inferior frontal gyrus, and Wernicke, who discovered a link between understanding language and the left temporal lobe.