Articulation research is a field of study that examines how speech sounds are produced by the vocal tract, including the movements of the lips, tongue, jaw, and other articulators. Researchers in this area seek to understand the mechanisms and processes involved in creating and shaping speech sounds, as well as the ways in which speech articulation varies across languages, dialects, and individual speakers. This research plays a crucial role in fields such as phonetics, phonology, speech pathology, and language acquisition.