addiction
-mental health disorder defined by compulsive drug seeking or behaviours
-can include physical and psychological dependence
physical dependence
-over time body physically adapts to presence of subtlstance
-results in tolerance
-if stio taking then unpleasant withdrawal syndrome
psychological dependence
-mental compulsion to carry out addictive behaviour
-individual believes they need to take substance
-absence results in psychological effects such as anxiety
tolerance
-state of adaptation in which exposure to drug causes physical changes tbat results in reduction of drugs effects over time
-need increased amount to achieve same desired effect
withdrawal symptom
-set of unpleasant symptoms when stop taking suddenly
-range from mild to severe eg seizures
-commonly sweating nausea and psychological symptoms such as anxiety or hallucinations
risk factors
-genetic vulnerability
-stress
-personality
-family influences
-peers
genetic vulnerability
-genes alone csnt explainations addiction as must be exposure to activity
-however genes can make individuals more or less suseprible to effect of drugs which influence addiction
genes implicated
-low numbers of D2 dopamine reception linked to addictive behaviour
-suggests reward system addicts function differently
Asian people and alcohol
-adodcition more or less likely due to how body processes drug
-50% asian people feel unwell when drinking, less likely develop addiction
stress
-addictive drugs function bg temporarily improving mood, higher levels stress more likely depend of drug for temporary relief
diathesis stress model
-extremely early life stress such as abuse influence brain development producing diathesis (vulnerability)
-making kayer addiction more likely as way go cope with later life (stressors)
personality
EYSNCK
-suggests individuals who neurotic and psychotic more likely form addictions
neurotic personality
-highly anxious and easy to upset
psychotic
-often impulsive and emotionally cold
family influences
-family’s attitude towards using addictive substance linked to likelihood child using the substance
-eg if parents use tabacco, child likely
-social learning
peers
-addictive substances may be encouraged by peers
-conformity dhe to compliance or identificstion eith group
limitations genetic vulnerability
-biologically reductionist, must be some interaction eith environment
-concordance rated never 100% suggesting much be some influence environment
strength genetic vulnerability
-twin, family and adoption studies indicate higher risk addiction if close family member has addiction
strength stress
-many addictive drugs do result in temporary reduction anxiety, some illegal drugs prescribed as anti anxiety medication suggesting people try self medicated but become addicted
limitation stress
-stress may be correlated with addiction dhe to stress caused by addiction such a finances and family
personality limitation
-addictive personality is a myth many people with personalities linked to addiction not addicts
personality strength
-certain personality factors such as risk taking clearly make someone more likely to try addictive substances
family influences limitation
-interaction between family genetics and social factors wilithin families that love together dofficult to separate, may have shared genetic weakness regardless of interpersonal interaction