قصور الانتباه وفرط الحركة
MRI studies of 1713 participants shows that both children and adults with Attention deficit hyperactivity disorder (ADHD) have smaller volumes of the nucleus accumbens, amygdala, caudate, hippocampus, putamen, and overall cortical and intracranial volume; and have less surface area and cortical thickness, compared to people without ADHD.