In a dorsal striatum region known as the putamen, which plays an important role in habits and is also inoled with attention, dopamine transporter leels did not differ between the two groups.

• 而在纹状体背侧的壳核中，两组之间多巴胺转运蛋白的水平差别不大，壳核在习性形成与注意力的集中的过程中发挥着重要作用。