ABSTRACT
This chapter shows how aphasia can affect any language, including the manual sign languages used by Deaf people throughout the world. It discusses cross linguistic similarities and differences in aphasia. Much of the chapter focusses on aphasia in bilingual language users. It shows that patterns in aphasia can inform our thinking about how the brain processes more than one language. Cases are described where the effects of aphasia differ across languages and the implications of these cases are discussed. The chapter presents evidence that bilingualism may enhance communication and recovery in some cases of aphasia. There is discussion about how to meet the clinical needs of a linguistically diverse aphasic case load and the effects of treatment in bilingual aphasia.
