Inquiry into signed languages has added to what is known about structural variation and language, language learning, and cognitive processing of language. However, comparatively little research has focused on communication disorders in signed language users. For some deaf children, atypicality is viewed as a phase that they will outgrow, and this results in late identification of linguistic or cognitive deficits that might have been addressed earlier. This volume takes a step towards describing different types of atypicality in language communicated in the signed modality such as linguistic impairment caused by deficits in visual processing, difficulties with motor movements, and neurological decline. Chapters within the book also consider communication differences in hearing children acquiring signed and spoken languages.

Inquiry into signed languages has added to what is known about structural variation and language, language learning, and cognitive processing of language. However, comparatively little research has focused on communication disorders in signed language users. For some deaf children, atypicality is viewed as a phase that they will outgrow, and this results in late identification of linguistic or cognitive deficits that might have been addressed earlier. This volume takes a step towards describing different types of atypicality in language communicated in the signed modality such as linguistic impairment caused by deficits in visual processing, difficulties with motor movements, and neurological decline. Chapters within the book also consider communication differences in hearing children acquiring signed and spoken languages.

Signed languages are the naturally-evolved visual-gestural languages of deaf communities. The realization that they are true languages is one of the great discoveries of the last thirty years of linguistic research. This book examines the linguistic properties of many, including detailed case studies of Hong Kong, British, Mexican and German signed languages. The contributors focus on determining the extent that linguistic structure is influenced by whether a language is signed or spoken. Their answers contribute to further understanding the organization of languages.

The realisation that signed languages are true languages is one of the great discoveries of linguistic research. The work of many sign language researchers has revealed deep similarities between signed and spoken languages in their structure, acquisition and processing, as well as differences, arising from the differing articulatory and perceptual constraints under which signed languages are used and learned. This book provides a cross-linguistic examination of the properties of many signed languages, including detailed case studies of Hong Kong, British, Mexican and German sign languages. The contributions to this volume, by some of the most prominent researchers in the field, focus on a single question: to what extent is linguistic structure influenced by the modality of language? Their answers offer particular insights into the factors that shape the nature of language and contribute to our understanding of why languages are organised as they are.