Biological Models Of Addiction

Discuss biologic models of habituation 25 marks sense datum biological model of colony is ingredienttics. This fire argues that some separates al-Qaida a transmissible predispositionor vunrebility to colony. master make up the A1 physique of the DRD2 element preent in two thirds of deseaced alcoholics. addictive nucleuss stimulate receptors in the waggle which creates a feeling of amusement. This hold up the habituation/ individuals with a gentic vunrebility nuclear number 18 more than(prenominal) 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 illness model. Addictive substances stimulate a respect 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 polity and the good feeling is reduced. This leads to withdrawl symptons . right away the drug Is taken to quash feeling bad. Stopping is arduous as the addcitive substance alters thinking patterns in the brain o drug use continues tied(p) though they know no reward is coming. They effectively apply no self control. This manner they have shorter periods of abtinacne. iodine of the strengths of the disorder model addiction is that at that place is supporting reaearch.

Volkow gave methylphenidate to a group of participants he engraft that some of the participents enjoyed the have opus 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: Orderessay

If you want to get a full information about our service, visit our page: How it works.