This book examines sociolinguistic, educational and psycholinguistic factors that shape the path to sign bilingualism in deaf individuals and contributes to a better understanding of the specific characteristics of a type of bilingualism that is neither territorial nor commonly the result of parent-to-child transmission. The evolution of sign bilingualism at the individual level is discussed from a developmental linguistics perspective on the basis of a longitudinal investigation of deaf learners' bilingual acquisition of German sign language (DGS) and German.

The case studies...