Pyschology Addiction

Describe and evaluate two theories of habit-forming behaviour, in initiation, maintenance, and relapse

biological models of addictive behaviour focus on the neurotransmitter substances in the brain, and on genetic differences between people with dependencys and people without addictions. Biological models of addictive behaviour, it seen that a person would be most suggestible to addiction during the initiation phase, because they have a predisposed biological vulnerability. such biological predispositions are less likely to have an burden during the maintenance of the addiction. However if a person managed to give up their addiction, a biological predisposition would make them more susceptible to relapse.
The neurotransmitter that is most commonly implicated with addictive behaviour is dopamine, neurotransmitters fatiguet only play a role in chemical addictions but have also been implicated in behaviours like gambling. Maintenance within the sphere of biological explanations of addictive behaviour shows that continued medicate use has an adverse force on the brains chemistry. It is thought that Dopamine receptors whitethorn not produce normal amounts of Dopamine after drug use; so the user has what is known as a come conquer or withdrawal.



Chronic exposure to drugs at last results in a Reduction in the activity of cocksure reward circuits in the brain (down regulation).This generates a stress detail for the addict,characterised by withdrawal symptoms. The negative state then becomes the dominant allele driving force in the drug craving.The user no longer takes the drugs to gain a pleasurable experience, but alternatively takes them to avoid an unpleasant state. As a result of down regulation the drugs levels required to trigger the brain reward system of rules increases.
The brain shows distinct changes after drug use that tummy persist long after that use is stopped which in most addiction cases unfortunately results in a relapse. lapsing occurs because the user may not be able to do it with...If you want to get a full essay, order it on our website: Ordercustompaper.com



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