Addiction Unit 4 Grade A Essay

Discuss one or more(prenominal) explanation of colony (8+16) The biologic explanation separate that habituation is constituted by the A1 tenor, great deal with A1 variant of DRD2 agent salary off less dopamine receptors on the pleasure centres of the brain. Therefore, they leave want to compensate and pull away more of the drug to egress more dopamine and seek pleasure. This shows that addicts sport less dopamine receptors and to increase the levels they take drugs and get hold 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 milieu this is down to the pre disposition of the cistron which makes them undefendable this shows why clean good deal change course to the treatment. Showing that addiction varies on pot because it depends on how vulnerable they argon to addiction and biologic approaches argon dependent on the divisor. Another weakness is inapposite explore welcomeings, Noble et al did a Meta analysis and ingraft kayoed that a divisor in the A1 variant influences alcoholic beverage and addiction and however he failed to find a kindred among the gene and alcoholism and addiction. This presents that biological methods on addiction cave in not been able to find a correlation.

DRD2 have been name in other disorders, Comings et al found out the DRD2 gene is found in mass with autism and tourettes stating that they have the reward gene but they do not get an influence of addiction. This explains that the biological explanation should not treat the DRD2 the reward gene because hatful with autism have the gene alike 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 causation of the A1 variant. This states that in biological explanations we cannot fix a cause and put in in addiction. Biological experiments are mainly on animals because of this we cannot hear it to...If you want to get a full essay, order it on our website: Ordercustompaper.com

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