AMERICAN SIGN LANGUAGE American Sign Language (ASL) is the visual-gestural language used by most of the deaf community in the United States and parts of Canada. On the surface, this language (as all signed languages) seems radically different from the spoken languages which have been used to formulate theories of linguistic princi ples and parameters. However, the position taken in this book is that when the surface effects of modality are stripped away, ASL will be seen to follow many of the patterns proposed as universals for human language. If these theoretical constructs are meant to hold...