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Despite the implication of fronto-striatal circuits in attention-deficit/hyperactivity disorder (ADHD), there is a lack of information on the role of these regions, especially the thalamus, in the(More)
The enzyme monoamine oxidase A (MAO A) plays an important role in the metabolism of neurotransmitters. The MAOA gene presents several polymorphisms, including a 30-bp VNTR in the promoter region(More)
The 5-HTTLPR polymorphism of serotonin transporter gene is widely investigated in association studies in autism spectrum disorders (ASD). The results of such studies, however, remain controversial(More)