期刊
DEVELOPMENTAL NEUROPSYCHOLOGY
卷 34, 期 6, 页码 663-682出版社
ROUTLEDGE JOURNALS, TAYLOR & FRANCIS LTD
DOI: 10.1080/87565640902964474
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Dopamine regulation may play a role in attention-deficit hyperactivity disorder (ADHD). Visual contrast sensitivity has been proposed as a measure of retinal dopamine that may predict frontal lobe dopamine levels. Individuals with disorders involving dopamine dysregulation (e.g., Parkinson's disease, Phenylketonuria) have shown poor contrast sensitivity. In this study, 110 6- to 13-year-old children with and without ADHD completed a task measuring visual contrast sensitivity. As predicted, contrast sensitivity was significantly worse in children with ADHD-Combined Type than controls. Contrast sensitivity was significantly correlated with inattention and hyperactivity. However, unlike many neuropsychological studies of ADHD, only hyperactivity accounted for unique variance.
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