突发：多动症药物，如阿德拉和利他林，可能不会直接提高注意力。一项新的脑部扫描研究显示，这些药物主要激活的是警觉性和愉悦感预期网络。
这项发表在《细胞》杂志上的研究，挑战了之前对这些兴奋剂如何发挥作用的理解。研究人员分析了数千份青少年脑部扫描结果。
该研究表明，这些药物对注意力的影响是间接的。它们会增加唤醒程度，从而使大脑的其他部分平静下来。
科学家们现在正在更新他们对多动症药物效果的看法。计划进行进一步的研究，以探索这些间接机制。
这是一个正在发展中的新闻。更多更新即将发布。
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