Addiction Unit 4 Grade A Essay

Discuss one or more(prenominal) explanation of colony (8+16) The biologic explanation nation that addiction is caused by the A1 variant, great vie with A1 variant of DRD2 agent pay off less dopamine receptors on the pleasure centres of the brain. Therefore, they will want to compensate and photograph more of the drug to release more dopamine and attempt pleasure. This shows that addicts sport less dopamine receptors and to increase the levels they take drugs and perish addicts because of the pleasure. However, a weakness of the biologic explanation is individual differences; factortic explanations shows how state stomach addicted and not others in the same environment this is down to the pre disposition of the agent which makes them vulnerable this shows why sensibly good deal resist to the treatment. Showing that addiction varies on pot because it depends on how vulnerable they argon to addiction and biological approaches are dependent on the component. Another weakness is discordant explore findings, Noble et al did a Meta analysis and ingraft kayoed that a gene in the A1 variant influences alcoholic drink and addiction and however he failed to find a birth among the gene and alcoholism and addiction. This presents that biological methods on addiction flip not been able to find a correlation.

DRD2 have been institute in other disorders, Comings et al found out the DRD2 gene is found in plurality with autism and tourettes stating that they have the reward gene but they do not imbibe an influence of addiction. This explains that the biological explanatio n should not call the DRD2 the reward gene b! ecause people with autism have the gene too and they do not get addicted. We cannot establish a cause and resolution because we dont know whether addiction causes the A1 variant or whether addiction is the tycoon of the A1 variant. This states that in biological explanations we cannot draw a cause and effect in addiction. Biological experiments are mainly on animals because of this we cannot realize it to...If you want to get a full essay, order it on our website: BestEssayCheap.com

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