Source:Shaywitz BA, Shaywitz SE, Blachman BA, et al. Development of left occipitotemporal systems for skilled reading in children after a phonologically-based intervention.
Biol Psychiatry.
2004
;
55
:
926
–933.

Strong consensus supports the idea that a reading disability represents a deficit in the ability to understand and manipulate the underlying structure of the smallest units of sounds in a language (phonemes).1 A range of neurobiological investigations shows a failure of left hemisphere posterior brain systems to function properly during reading in children and adults with reading disabilities. 2 Functional magnetic resonance imaging (fMRI) uses blood flow to determine which parts of the brain activate during different types of activity, such as a reading task.3 Evidence of a disruption in the normal reading pathways provides a neurobiological target for reading interventions, and a potential method to assess them. Researchers at Yale University, New Haven, Conn, Syracuse University,...

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