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With hypofrontality being linked to psychiatric diseases, depression, and drug addiction, there is a possibility that they all may have some common pathophysiological mechanism linking the diseases. Even with the large amounts of research on hypofrontality in schizophrenia, there is still a lot to be learned about its neuronal mechanisms.
Addiction psychiatry is a relatively new subspecialty of psychiatry. As of October 1991, the American Board of Psychiatry and Neurology and the American Board of Medical Specialties (ABMS), with support of the American Psychiatric Association, established a "Committee on Certification of Added Qualifications in Addiction Psychiatry."
Helping an individual stop using drugs is not enough. Addiction treatment must also help the individual maintain a drug-free lifestyle, and achieve productive functioning in the family, at work, and in society. Addiction is a disease which alters the structure and function of the brain.
“Addiction is a condition that is incredibly stigmatized, and because we still see addiction as crime more than a disease, that carries over into our treatment,” she said. “What you end up with is something that in any other part of the medical system would be considered absolutely abhorrent bedside manner, [but here] is actually seen as ...
The animal models of addiction are particularly useful because animals that are addicted to a substance show behaviors similar to human addicts. This implies that the structural changes that can be observed after the animal ingests a drug can be correlated with an animal's behavioral changes, as well as with similar changes occurring in humans.
An addiction is, by definition, a form of compulsion, and involves operant reinforcement. For example, dopamine is released in the brain's reward system and is a motive for behaviour (i.e. the compulsions in addiction development through positive reinforcement). [19] There are two main differences between compulsion and addiction.
Models of addiction risk that have been proposed in psychology literature include an affect dysregulation model of positive and negative psychological affects, the reinforcement sensitivity theory model of impulsiveness and behavioral inhibition, and an impulsivity model of reward sensitization and impulsiveness. [1] [5] [6]
Substance dependence, also known as drug dependence, is a biopsychological situation whereby an individual's functionality is dependent on the necessitated re-consumption of a psychoactive substance because of an adaptive state that has developed within the individual from psychoactive substance consumption that results in the experience of withdrawal and that necessitates the re-consumption ...