Human communication is vastly more complex than that of any other species we know about. It is so complex that linguists are only just beginning to identify the processes in the brain that are related to understanding language. This unit looks at how language is understood by taking an interdisciplinary approach. This study unit is just one of many that can be found on LearningSpace, part of OpenLearn, a collection of open educational resources from The Open University. Published in ePub 2.0.1 format, some feature such as audio, video and linked PDF are not supported by all ePub readers.