最近 ,美国研究人员使用遗传突变小鼠进行的研究显示 ,可卡因导致的欣快体验不仅仅与脑内多巴胺递质系统相关 ,也与其它几种递质系统相关 ,他们由此认为 ,治疗可卡因依赖的方法也应针对多个环节方能有效。在此之前人们认为 ,可卡因之所以能产生欣快体验 ,是因为可卡因能特异性 Recently, a study by U.S. researchers using genetically mutant mice showed that the cocaine-induced euphoria experience is not only related to the dopamine neurotransmitter system in the brain but also to several other neurotransmitter systems, and they therefore believe that the treatment of cocaine dependence The method should also be effective for many aspects. Prior to this, people believed that the reason cocaine produced euphoria was because cocaine was specific