Relations of language and cognition : what do deaf children tell us? / Marc Marschark and Victoria S. Everhart -- Universals, generalizability, and the acquisition of signed language / Patricia Siple -- The modular effects of sign language acquisition / Diane Lillo-Martin -- Read the lips : speculations on the nature and role of lipreading in cognitive development of deaf children / Ruth Campbell -- Making faces : coextant domains for language and visual cognition / Ruth Campbell -- In support of the language acquisition device / Diane Lillo-Martin -- Modules and the informational encapsulation of language processes / Patricia Siple -- Models, modules, and modality / Victoria S. Everhart and Marc Marschark