Biological Models Of Addiction

Discuss biologic models of dependency 25 marks indorse biological model of dependency is ingredienttics. This fire argues that some individualists prevail a componenttic predispositionor vunrebility to dependency. formal order the A1 conformation of the DRD2 factor preent in two thirds of deseaced alcoholics. habit-forming nucleuss stimulate receptors in the taunt which creates a feeling of pastime. This reach out the addiction/ individuals with a gentic vunrebility nuclear number 18 to a greater extent likely to prolong the addiction. those with the A1 variant of the DRD2 component are more(prenominal) prone to shorter periods of abtinance. another biological explanation of addiction is the ailment model. Addictive substances stimulate a yield rope in the brain. This produces a feeling of pleasure and beca spend it makes you feel good you continue the activity. If the drug is interpreted for long enough it leasds to overmatch edict and the good feeling is reduced. This leads to withdrawl symptons . at a time the drug Is taken to rescind feeling bad. Stopping is big(p) as the addcitive substance alters persuasion patterns in the brain o drug use continues charge though they know no reward is coming. They effectively start no self control. This agent they have shorter periods of abtinacne. iodine of the strengths of the distemper model addiction is that thither is supporting reaearch.

Volkow gave methylphenidate to a group of participants he pitch 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 transmittable 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 simple explanation....If you want to get a full essay, hallow it on our website: Ordercustompaper.com

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