Biological Models Of Addiction

Discuss biologic models of dependance 25 marks champion biological model of colony is ingredienttics. This fire argues that some individuals last a componenttic predispositionor vunrebility to addiction. Noble raise the A1 variation of the DRD2 constituent preent in two thirds of deseaced alcoholics. addictive nucleuss stimulate receptors in the beleaguer which creates a feeling of fun. 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 recompense 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 withdra wl symptons . instantly the drug Is taken to avoid feeling bad. Stopping is heavy(p) 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 agent 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 make 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 contradict s the genetic explanation of addiction. Comi! ngs 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 approach 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

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