Biological Models Of Addiction

Discuss biologic models of dependance 25 marks asterisk biological model of dependency is ingredienttics. This fire argues that some individuals have a bun in the oven a factortic predispositionor vunrebility to addiction. Noble strand the A1 signifier of the DRD2 gene preent in two thirds of deseaced alcoholics. addictive nucleuss stimulate receptors in the bill which creates a feeling of joy. This prolong the addiction/ individuals with a gentic vunrebility atomic number 18 more likely to prolong the addiction. those with the A1 variant of the DRD2 gene are more prone to shorter periods of abtinance. another biological explanation of addiction is the disease model. Addictive substances stimulate a issue rope in the brain. This produces a feeling of pleasure and beca spend it makes you feel soundly you continue the activity. If the drug is taken for long enough it leasds to overmatch regulation and the good feeling is reduced. This leads to withd rawl symptons . instantly the drug Is taken to avoid feeling bad. Stopping is unexpressed as the addcitive substance alters thinking patterns in the brain o drug use continues even though they know no reward is coming. They effectively have no self control. This centre they have shorter periods of abtinacne. iodine of the strengths of the disease model addiction is that on that point is supporting reaearch. Volkow gave methylphenidate to a group of participants he assemble that some of the participents enjoyed the have while others didnt. He conducted brain scans and found that those who enjoyed the feeling brought on by Ritalin had fewer dopamine receptor. there is look that contradicts the genetic explanation of addiction. Comings found the DRD2 gene present in individual with autism. This is a weakness as it contradict the supposition of the DRD2 gene being a reward gene as individuals with autism arent seen to be pleasure seeking. a critisms of the biological app roach to addiction I that it is reductionist! . Reduces the complexity of addiction down to a simplistic explanation....If you want to get a full essay, hallow it on our website: OrderEssay.net

If you want to get a full information about our service, visit our page: write my essay