Genetics contributes importantly to learning abilities and disabilities--not just to reading, the target of most genetic research, but also to mathematics and other academic areas as well. One of the most important recent findings from quantitative genetic research such as twin studies is that the same set of genes is largely responsible for…

Background: Developmental dyscalculia is a heterogeneous disorder with largely dissociable performance profiles. Though our current understanding of the neurofunctional foundations of (adult) numerical cognition has increased considerably during the past two decades, there are still many unanswered questions regarding the developmental pathways of…

The mechanisms of both language-based and non-language-based learning disabilities are presented within the framework of central nervous system development and the compromises to that development that arise from genetic, hormonal, antibody, medication, and postnatal compromises. Also reviewed is the need for a taxonomy of learning disabilities.…

Parents (N=100) of children (ages 9 to 13) with or without learning disabilities (LD) responded to a retrospective developmental survey. Parents reported that the children with LD had significantly more neurodevelopmental problems or delays across domains (e.g., language, motor, attention, social behavior) than normal achievers. A pattern of…

The review provides a classification of learning disorders; current views on possible physical and chemical factors contributing to such disorders; neurodevelopmental requirements for learning to read, write, and spell; and a method for assessing neurodevelopment. Also noted are indications for the use of medication. (Author/DB)

The Child Development & Behavior (CDB) Branch of the National Institute of Child Health and Human Development (NICHD) seeks to improve the health and well-being of individuals from infancy through early adulthood by supporting research into healthy growth and development, including all aspects of child development. The study of typical child…

The article discusses neuropsychological and treatment aspects of brain behavior disorders in children from the standpoint of terms such as minimal brain dysfunction, learning disabilities, hyperactivity, and hyperkinetic syndrome. (Author/DLS)

Recent advances in neuroimaging and genetics technologies have enhanced our understanding of neurodevelopmental disorders in adults. The authors in this volume not only discuss such advances as they apply to adults with learning disorders, but also address their translation into clinical practice. One cluster of chapters addresses developmental…

This article offers a historical overview of the neurological aspects of dyslexia (originally seen as related to aphasia) and a review of familial and genetic factors in developmental dyslexia. Psycholinguistic models of dyslexia as they relate to neurological concepts are presented and the evolution of successful remedial methods is summarized.…

Background: Arithmetical skills are essential to the effective exercise of citizenship in a numerate society. How these skills are acquired, or fail to be acquired, is of great importance not only to individual children but to the organisation of formal education and its role in society. Method: The evidence on the normal and abnormal…