Methylphenidate 'Normalizes' Activation in Key Brain Areas in Kids With ADHD, Study Suggests
[Source: Science Daily]
The stimulant drug methylphenidate “normalizes” activation of several brain areas in young patients with attention-deficit/hyperactivity disorder (ADHD), according to a review published in the May Harvard Review of Psychiatry.
Studies using functional magnetic resonance imaging (fMRI) show increased activation of key brain areas after a dose of methylphenidate in young patients with ADHD, according to the systematic review by Constance A. Moore, PhD, and colleagues of the University of Massachusetts Medical School. They write, “In most cases, this increase ‘normalized’ activation of at least some brain areas to levels seen in typically developing children.”
How Do ADHD Medications Affect the Brain in ADHD Patients?
In a research review, Dr Moore and colleagues identified nine previous studies using fMRI to study patterns of brain activation in response to a single dose of methylphenidate. Perhaps best known by the brand name Ritalin, methylphenidate is a common and effective treatment for ADHD. “Although methylphenidate has been shown to significantly improve the behavioral symptoms associated with ADHD, both the mechanism behind its therapeutic effect and its direct effects on brain function are unknown,” the researchers write.
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