Sign Linguistics

The scientific study of the structure and properties of sign languages. Sign linguistics examines the phonological, morphological, syntactic, and semantic components of visual-gestural languages. Key parameters studied include handshape (approximately 90 distinct configurations in ASL), palm orientation, location relative to the body, movement, and non-manual markers like facial expressions. Understanding sign linguistics is essential for developing sign language recognition technology, dictionary interfaces, and educational tools. Unlike spoken languages, sign languages use three-dimensional space grammatically and can convey multiple morphemes simultaneously rather than sequentially.