How Chronic Drug Use Affects The Function Of A Brain Essay example

1581 Words Dec 13th, 2015 null Page
In this paper, I am going to summarize how chronic drug use affects the function of a brain and how this leads to the aberrant behavioral manifestations of addiction (Volkow & Ting-Kai, 2005). A view of drug addiction has been changed from the ‘choices’ of the addicted individuals to the dysfunction of the brain. Drug addiction may be regarded as a disease of the brain reward system. This system, closely related to the system of emotional arousal, is located predominantly in the limbic structures of the brain (Vetulani, 2001). Within decades, the researchers got a variety of results about the underlying mechanism in drug addiction, however, factoring out how drug addiction works is complex. We need to consider social and genetic mechanisms of drug addiction. It is fundamental to see how neural mechanisms are involved in drug addiction for future treatment and research.

The definition of a drug addiction is the loss of control over the intense urges to take the drug even at the expense of adverse consequences (Volkow & Ting-Kai, 2005). There are multiple mechanisms of how drugs work in our brain such as positive reward, inhibitory control, and executive function to modulate the brain functions. In this paper, I am going to examine how addictive drugs alter the brain function and result in mediating our behaviors.
The single most important organ in the mediation of behavior is the brain. Emotion, pain, and pleasure we experience, everything that makes us what we are, is the…

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