Substance Abuse Beyond Dopamine and Impulsivity

 In this study, the authors summarized fresh evidence that links impulsivity, dopamine production,,,

 and cocaine usage as risk factors for substance dependence.  

 In a rat study, researchers found that impulsivity predicts cocaine consumption via regulation of its release rather than dopamine production capability.  

 In a rat study, researchers found that impulsivity predicts cocaine consumption via regulation of its release rather than dopamine production capability.  

 implying that there are more nuanced factors at play in susceptibility to drug abuse than was previously believed.  

 A particular facet of impulsivity affects susceptibility to drug misuse, since impulsive behavior,,,

 rather than risky decision-making, is a stronger predictor of greater cocaine use.  

 It was previously believed that repeated drug use would lead to diminished dopamine production; however, research has shown that prolonged cocaine usage has no effect on the brain.

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