This volume presents the findings of a large-scale study of individual differences in spoken (and heard) language development during the school years. The goal of the study was to investigate the degree to which language abilities at school entry were stable over time and influential in the child's overall success in important aspects of development. The methodology was a longitudinal study of over 600 children in the US Midwest during a 10-year period. The language skills of these children -- along with reading, academic, and psychosocial outcomes -- were measured. There was intentional oversampling of children with poor language ability without being associated with other developmental or sensory disorders. Furthermore, these children could be sub-grouped based on their nonverbal abilities, such that one group represents children with specific language impairment (SLI), and the other group with nonspecific language impairment (NLI) represents poor language along with depressed nonverbal abilities. Throughout the book, the authors consider whether these distinctions are supported by evidence obtained in this study and which aspects of development are impacted by poor language ability. Data are provided that allow conclusions to be made regarding the level of risk associated with different degrees of poor language and whether this risk should be viewed as lying on a continuum. The volume will appeal to researchers and professionals with an interest in children's language development, particularly those working with children who have a range of language impairments. This includes Speech and Language Pathologists; Child Neuropsychologists; Clinical Psychologists working in Education, as well as Psycholinguists and Developmental Psychologists.

This volume presents the findings of a large-scale study of individual differences in spoken (and heard) language development during the school years. The goal of the study was to investigate the degree to which language abilities at school entry were stable over time and influential in the child's overall success in important aspects of development. The methodology was a longitudinal study of over 600 children in the US Midwest during a 10-year period. The language skills of these children -- along with reading, academic, and psychosocial outcomes -- were measured. There was intentional oversampling of children with poor language ability without being associated with other developmental or sensory disorders. Furthermore, these children could be sub-grouped based on their nonverbal abilities, such that one group represents children with specific language impairment (SLI), and the other group with nonspecific language impairment (NLI) represents poor language along with depressed nonverbal abilities. Throughout the book, the authors consider whether these distinctions are supported by evidence obtained in this study and which aspects of development are impacted by poor language ability. Data are provided that allow conclusions to be made regarding the level of risk associated with different degrees of poor language and whether this risk should be viewed as lying on a continuum. The volume will appeal to researchers and professionals with an interest in children's language development, particularly those working with children who have a range of language impairments. This includes Speech and Language Pathologists; Child Neuropsychologists; Clinical Psychologists working in Education, as well as Psycholinguists and Developmental Psychologists.

Developmental language disorders (DLD) occur when a child fails to develop his or her native language often for no apparent reason. Delayed development of speech and/or language is one of the most common reasons for parents of preschool children to seek the advice of their family doctor. Although some children rapidly improve, others have more persistent language difficulties. These long-term deficits can adversely affect academic progress, social relationships and mental well-being. Although DLDs are common, we are still a long way from understanding what causes them and how best to intervene. Understanding Developmental Language Disorders summarises the recent research developments in genetics and neuroimaging studies, assessment techniques and treatment studies to provide an overview of all aspects of DLD. The book investigates the possible genetic and biological causes of the disorder, how best to assess children's language skills to identify when and where communication breakdown occurs, what the long-term outcomes are for children who grow up with DLD, overlaps between DLD and other childhood disorders such as dyslexia and autism and how best to treat children with the disorder. Each chapter is written by a leading authority in the field in a format accessible to researchers, clinicians and families alike. This book, with its focus on both theory and practice, will be invaluable to students and researchers of speech-language pathology, psychology, psychiatry, linguistics and education. It will also be of interest to practicing speech-language pathologists, clinical psychologists, psychiatrists, educational psychologists, and teachers and parents of children with developmental language disorders.

Developmental language disorders (DLD) occur when a child fails to develop his or her native language often for no apparent reason. Delayed development of speech and/or language is one of the most common reasons for parents of preschool children to seek the advice of their family doctor. Although some children rapidly improve, others have more persistent language difficulties. These long-term deficits can adversely affect academic progress, social relationships and mental well-being. Although DLDs are common, we are still a long way from understanding what causes them and how best to intervene. Understanding Developmental Language Disorders summarises the recent research developments in genetics and neuroimaging studies, assessment techniques and treatment studies to provide an overview of all aspects of DLD. The book investigates the possible genetic and biological causes of the disorder, how best to assess children's language skills to identify when and where communication breakdown occurs, what the long-term outcomes are for children who grow up with DLD, overlaps between DLD and other childhood disorders such as dyslexia and autism and how best to treat children with the disorder. Each chapter is written by a leading authority in the field in a format accessible to researchers, clinicians and families alike. This book, with its focus on both theory and practice, will be invaluable to students and researchers of speech-language pathology, psychology, psychiatry, linguistics and education. It will also be of interest to practicing speech-language pathologists, clinical psychologists, psychiatrists, educational psychologists, and teachers and parents of children with developmental language disorders.