کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
3054401 1580052 2009 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
The neurobiology of attention deficit/hyperactivity disorder
موضوعات مرتبط
علوم زیستی و بیوفناوری علم عصب شناسی علوم اعصاب تکاملی
پیش نمایش صفحه اول مقاله
The neurobiology of attention deficit/hyperactivity disorder
چکیده انگلیسی

ADHD is a brain based disorder with structural and functional abnormalities in widespread but specific areas of the brain. The most significant and consistent structural imaging findings include smaller total brain volumes, and reduced volumes in the right frontal lobe, right parietal cortex, caudate nucleus, cerebellar hemispheres, and posterior-inferior lobules of the cerebellar vermis. ADHD involves hypofunction of catecholaminergic circuits, particularly those that project to the prefrontal cortex. A minimum of 18 genes have been reported to be associated with the disorder; among them the DRD4 7-repeat allele has been found associated with a thinner prefrontal and posterior parietal cortex. Epigenetic factors acting during critical periods of prenatal and postnatal development may interact with genetic determinants. Methylphenidate, as well as the catecholaminergic nonstimulant atomoxetine, are effective in improving ADHD symptoms.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: European Journal of Paediatric Neurology - Volume 13, Issue 4, July 2009, Pages 299–304
نویسندگان
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