Defining dyslexia as a developmental language disorder

Despite recent developments in research and theory, investigators and practitioners continue to rely on rather traditional definitions of dyslexia. This paper discusses some of the problems with traditional definitions and reviews a rapidly growing body of research that suggests a more comprehensive definition. According to this definition, dyslexia is a developmental language disorder that involves a deficit(s) in phonological processing. This disorder manifests itself in various phonological difficulties as well as a specific reading disability.