champion biological model of addiction is ingredienttics. This fire argues that some individuals stand a genetic predispositionor vunrebility to addiction. Noble found the A1 variant of the DRD2 gene preent in two thirds of deseaced alcoholics.
addictive nucleuss stimulate receptors in the card which creates a feeling of pleasure. 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 reward 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 withdrawl symptons . now the drug Is taken to avoid feeling bad. Stopping is hard 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 means they have shorter periods of abtinacne.
iodine of the strengths of the disease model addiction is that there is supporting reaearch.
Volkow gave methylphenidate to a group of participants he found 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 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: Ordercustompaper.com
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