Drug craving

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Recommended: Psychological effects of drug abuse

Introduction
Drug abuse is a constant inappropriate use of drugs which is self-administrated that can cause one divergence from the social norms. This abuse usually turns into a long-term addiction. Despite of dependence, the process of relinquishing oneself from the addiction become difficult due to the Physical dependence. In reality, drug addiction is a complex disease and it is not easy to quit. Drug addiction is a chronic disease due to the fact that it affects regrowth of new brain cells. The neurotransmitters are chemicals that transfer signals across the brain. During addiction, the reaction rate in which the neurotransmitters synthesize decrease.
Summary
This section contains summaries of Robinson and Berridge’s theory on drug addiction, ‘incentive-sensitization’ theory and “Short toxic methamphetamine schedule impairs object recognition task in male rats” theory conducted by Bisagno, Ferguson and Luine. Robinson and Berridge (1993) incorporated features of drug dependence and explained how group of drugs can share a similar dependence liability. They stated ...

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