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Neurodevelopmental Variation as a Framework for Thinking About the Twice Exceptional

Developmental exceptionalities span the range of learning abilities and encompass children with both learning disorders and learning gifts. The purpose of this article is to stimulate thinking about these exceptionalities, particularly the complexities and variations within and across people. Investigators tend to view learning disabilities or abilities, and gifts or high-end exceptionalities, as if they were necessarily and completely independent. This approach has led many in the field to look upon only limited aspects of the exceptional child, culminating in an inability to resolve the great variation and covariation that exists within and across children. Although there are a number of cognitive differences models that correctly advocate for an appreciation of profiles of strengths and weaknesses in the exceptional child, there remains a need for a neuroscientific approach that can help us better understand and accommodate the twice-exceptional individual—one with developmental disorders but also with high skills in the talent, creativity, or intellectual domains. We propose a model that will help us to fully appreciate that the brain that produces developmental learning abilities across the spectrum must be viewed as an integrated and multifaceted organ that is more than a simple reflection of its separate parts or domain-specific symptoms. We use developmental reading disability or dyslexia and the twice-exceptional individual as a means to illustrate how this model can aid in our thinking about these conditions.