Risk factors AD Flashcards
risk factors
any internal or external factors that increases the likelihood that someone with use an addictive substance
genetic vulnerability
any inherited predisposition that increases the risk of a disorder or condition
stress
stressful life events and traumatic experiences in childhood and adulthood are important risk factors for addiction
personality
various traits that increase a person’s likelihood to develop an addiction
family influence
how much the risky individual believes their parents approve of the behaviour is a risk factor
peers
the attitude of peers towards addictive substances or behaviours are a risk factor in teenagers
There are 2 mechanisms that create a genetic vulnerability to addiction:
- D2 receptor
- Nicotine enzyme (CYP2A6)
D2 receptor
dopamine transmission is affected by someone’s number of dopamine receptors. Addicts have an abnormally low amount of D2 receptors. Less receptors means less dopamine activity, hence using drugs to compensate for this.
Nicotine enzyme (CYP2A6)
Addiction is linked to how some people can metabolise easier. Pianezza et al found that some people lack the enzyme (CY2A6) which metabolises nicotine. These people smoke less than those with a fully functioning enzyme. Expression of this enzyme is genetically determined.
Rey et al
genes are central factor
Support from adoption studies
strength for genetic vulnerability
- Kendler et al used data from the National Swedish Adoption Study
- Looked at adults who had been adopted away from at least one biological parent with an addiction
- These children had significantly greater risk of developing an addiction
Supports the role of genetic vulnerability as an important risk factor
Anderson and Teicher → adverse childhood experiences
stress
- Early experiences of extreme stress have damaging effects on young brains in a sensitive period of development
- Creates vulnerability to later stress
- Further stressful experiences trigger the vulnerability to the point where people self medicate with drugs
Issue of causation
limitation of stress
- Strong positive correlation between stressful experiences and addiction
- But this does not mean that stress is a risk factor, it is the order that matters
- Some people become addicted before major stress events and then this causes greater stress in their lives due to the negative effects on lifestyles
Cannot conclude stress is a significant risk factor based on correlational studies alone.
Petry - personality
Addiction is linked to disordered personality e.g. Antisocial Personality Disorder APD
Robins - personality
argues APD is a causal risk factor as the people break norms, are impulsive and behave criminally. So young people with APD will take drugs as it is against norms and is criminal, thus satisfying their desires.