Learning Disabilities Subtypes

Although experts agree that various types of learning disabilities do exist, few attempts have been made to classify learning disabled children into subtypes. The editors of this collection feel that the lack of subcategorization has frustrated previous research efforts to obtain a generalizable body of knowledge in the field. To meet this critical need for definitive information, this book presents basic reviews and theoretical approaches used to subtype learning disabled children -- ranging from a behavior genetics approach to a dimensional approach. It also demonstrates actual research methods utilizing theoretical approaches.

Although experts agree that various types of learning disabilities do exist, few attempts have been made to classify learning disabled children into subtypes. The editors of this collection feel that the lack of subcategorization has frustrated previous research efforts to obtain a generalizable body of knowledge in the field. To meet this critical need for definitive information, this book presents basic reviews and theoretical approaches used to subtype learning disabled children -- ranging from a behavior genetics approach to a dimensional approach. It also demonstrates actual research methods utilizing theoretical approaches.

The publication of this very important volume comes at a timely juncture in the history of learning disabilities. The focus of this volume is on developing a multidisciplinary understanding of the complexities of the research on learning disabilities and its various sUbtypes. It also will serve as an important compendium of the subtyping literature, particularly with respect to pertinent issues of nosology, specific sUbtyping models, neuro psychological diagnosis, and treatment. As the authors so correctly suggest, the differential diagnosis of learning disabilities subtypes is a critical first step in developing theoretically sound programs of psychoeducational intervention. Clearly, one must have some idea about the general abilities of a child before realistic expectations can be charted. Also, how can one plan a program of intervention without some knowledge of the deficient components of achievement within a do main? Does it not make both conceptual and practical sense to identify an individual's relative strengths and weaknesses so that abilities or strengths can be utilized to optimize functioning in areas of deficit? Although these all sound like reasonable precursors to assisting individuals in need of academic assistance, there are those who would argue otherwise. Impor tantly, however, the Director of the National Institutes of Health, in a recent report to Congress, advocates exactly what this volume proposes. Indeed, there are important needs to be addressed, and the literature reviewed herein strongly supports the conclusions drawn by these authors.

Building upon earlier attempts to create a scientific basis for subtypes of learning disabili~ties, this volume continues to examine the extent to which various subtyping schemes are valid. Like its predecessor, Neuropsychology of Learning Disabilities: Essentials of Subtype Analysis, it seeks to define such subtypes within an explicitly neuropsychol~ogical framework. Following an insightful over~view of the dimensions and clinical applications of validity to learning disability subtypes, it reports on a wide-ranging series of investigations designed to designate the content, concurrent, predictive, construct, and clinical validity of various subtyping efforts.

Children living in poverty are more likely to have mental health problems, and their conditions are more likely to be severe. Of the approximately 1.3 million children who were recipients of Supplemental Security Income (SSI) disability benefits in 2013, about 50% were disabled primarily due to a mental disorder. An increase in the number of children who are recipients of SSI benefits due to mental disorders has been observed through several decades of the program beginning in 1985 and continuing through 2010. Nevertheless, less than 1% of children in the United States are recipients of SSI disability benefits for a mental disorder. At the request of the Social Security Administration, Mental Disorders and Disability Among Low-Income Children compares national trends in the number of children with mental disorders with the trends in the number of children receiving benefits from the SSI program, and describes the possible factors that may contribute to any differences between the two groups. This report provides an overview of the current status of the diagnosis and treatment of mental disorders, and the levels of impairment in the U.S. population under age 18. The report focuses on 6 mental disorders, chosen due to their prevalence and the severity of disability attributed to those disorders within the SSI disability program: attention-deficit/hyperactivity disorder, oppositional defiant disorder/conduct disorder, autism spectrum disorder, intellectual disability, learning disabilities, and mood disorders. While this report is not a comprehensive discussion of these disorders, Mental Disorders and Disability Among Low-Income Children provides the best currently available information regarding demographics, diagnosis, treatment, and expectations for the disorder time course - both the natural course and under treatment.

The syndrome of nonverbal learning disabilities (NLD) is a subtype of learning disabilities whose neuropsychological assets and deficits have predictable academic and psychosocial outcomes. Developed by Byron P. Rourke and elucidated in his previous work, the "white matter model" was designed to encompass the complex manifestations and neurophysiological underpinnings of the NLD syndrome. Now, for the first time, evidence that bears upon the white matter model has been gathered into a single volume. Building upon Rourke's previous work on NLD, Syndrome of Nonverbal Learning Disabilities: Neurodevelopmental Manifestations, further explores the ramifications of NLD in the neuropsychology of learning disabilities and in pediatric neurological disease, disorder, and dysfunction. Following an overview of the white matter model, chapters cover a wide range of pediatric neurological diseases and disorders through which the model is examined with particular attention to its neurophysiological aspects. The diseases and disorders discussed include callosal agenesis, Asperger syndrome, velocardiofacial syndrome, Williams syndrome, de Lange syndrome, early hydrocephalus, Sotos syndrome, congenital hypothyroidism, acute lymphocytic leukemia, metachromatic leukodystrophy, Turner syndrome, fetal alcohol syndrome, multiple sclerosis, traumatic brain injury, and toxicant-induced encephalopathy. Dimensions relevant to both assessment and treatment are raised throughout the work, as are suggestions for future research. Recommended for neuropsychologists, neurologists, psychologists, psychiatrists, and pediatricians treating children with learning disabilities or with pediatric neurological disease, disorder, and dysfunction, Syndrome of Nonverbal Learning Disabilities serves both as an authoritative update on recent advances and as a text for advanced courses in child/developmental neuropsychology, pediatric neurology, and learning disabilities.

It is important to reaffirm the reality of the learning disabilities (LD) phenomenon as a condition that imposes genuine constraints on a student's ability to function, and not as some chimerical entity defined by an ever-changing political situation. Perceptual, memory, attention, linguistic, social, cognitive and neuropsychological factors are an integral part of LD. By mapping out in great detail and with much new data the acquired knowledge on learning disabilities, both empirical and theoretical, this book unravels many mysteries. This book is a landmark in learning disabilities studies, and it lays down solid foundations for future research and practical intervention in the field.

Clinicians within the fields of neuropsychology and school psychology may find this text to be a useful guide in understanding and assessing the disparate learning disorders. This resource reviews the extant literature regarding the current status of diagnosis, conceptualization, and evaluative methods of reading, mathematics, writing, and nonverbal learning disorders. Interventions will be elucidated regarding the remediation of the various subtypes of learning disorders. This book is specifically tailored to aid busy clinicians and students-in-training in accruing the clinical acumen pertinent to assessment of learning disorders. Case studies are included that will give a look into types of cases and profiles clinicians will often come across in practice.

NONVERBAL LEARNING DISABILITIES systematically identifies, describes, and explains the elements and dynamics of the nonverbal learning disabilities (NLD) syndrome--including its neuropsychological, academic, and socioemotional/adaptational aspects. In addition, this groundbreaking work explores the ramifications of the NLD syndrome for both the theoretical and applied aspects of the neuropsychology of learning disabilities in particular and for the field of child-clinical neuropsychology in general.