Language development is the process through which individuals acquire and learn to use language, including the ability to understand and produce spoken and written words. This research area explores how children develop language skills, how language is processed in the brain, and how language abilities change over the lifespan. Researchers in this field study various aspects of language development, such as phonological development, vocabulary acquisition, grammar learning, and pragmatic communication skills. They also investigate the impact of factors such as environment, genetics, and individual differences on language development. Ultimately, the goal of language development research is to better understand how humans acquire and use language, and to inform interventions for individuals with language disorders or delays.