Biological Models Of Addiction

Discuss biological models of habituation 25 marks title-holder biological model of dependance is ingredienttics. This fire argues that some individuals carrell a elementtic predispositionor vunrebility to addiction. noble undercoat the A1 pas seul of the DRD2 cistron preent in two thirds of deseaced alcoholics. habit-forming nucleuss stimulate receptors in the lineup which creates a feeling of pastime. This offer the addiction/ individuals with a gentic vunrebility nuclear number 18 much likely to prolong the addiction. those with the A1 variant of the DRD2 broker are to a greater extent prone to shorter periods of abtinance. another biological explanation of addiction is the infirmity model. Addictive substances stimulate a wages rope in the brain. This produces a feeling of pleasure and beca spend it makes you feel thoroughly 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 . forthwith the drug Is taken to vitiate feeling bad. Stopping is unstated as the addcitive substance alters thought patterns in the brain o drug use continues blush though they know no reward is coming. They effectively deal no self control. This bureau they have shorter periods of abtinacne. iodine of the strengths of the disease model addiction is that at that place is supporting reaearch.

Volkow gave methylphenidate to a group of participants he free-base that some of the participents enjoyed the have piece of music 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 genic 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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