Substance Use and Abuse - Chappy 5 Flashcards
Define addiction
A condition, produced by repeated consumption of natural/synthetic psychoactive substance - physically and/or psychologically dependent
Phys D: body adjusted + incorporated into functioning (tolerance, withdrawal)
Psych D: typically occurs 1st.. cravings/desire (time, energy)
Disruption in life functioning (2 or more of 12 characteristics)
What are the factors that can influence dependence?
ask after:
what are the theories attached to substance related cues and avoiding withdrawal
Hint: there are 6 - think basics
Genetics
-Identical - more similar addictive behaviours than fraternal
Diff genes for diff substances
High risk genes - counteracted by parental monitoring
Expectancies
-Ideas about outcomes of behaviour - what we learn to expect from drug and alc use (some posi, some negi)
Personality
-Impulsive, low self-regulation, risk taking, sensation seeking
Reinforcement
-Posi (buzz), negi (removes tension, pain, stress)
Quick effects, use for cognitive/emotional regulation
Substance related cues (classical conditioning)
-Repeated pairings, stimulus - drugs - want to do drugs
Incentive sensitization theory - dopamine enhances salience of stimuli w/use, makes substances increasingly powerful in directing behaviour
Avoiding withdrawal
-Delirium tremens: intense anxiety, tremors and frightening hallucinations when blood alc drops
Why do people smoke? Think psych (3) and social aspects
Psych
Beliefs: perceive low risk, high benefits
Expectations: enhance self image
Personal factors: low self-esteem, impulsive/sensation seeking, concerns about body weight
Social
Idols, parents, PEER influence (reduce perception of harm)
School - poor regulation/enforcement
Standard of thinness
What are the age differences in smokers?
Begins at 13 (gr.8), few reg smokers begin after early 20s - more risk if no plans for secondary
% levels off at early adult hood (declines 35years)
Why do smokers maintain the habit: what is the affect management model?
smokers strive to regulate emotional states
(+) posi effect = stimulation, relaxation, pleasure
(-) nega effect = relieves boredom, stress, depression
What is the role of incotene in cig addicts?
What is the nicotene regulation model? - what is the associated study?
Alveoli straight to bloodstream - stimulates NS, all the good feels
NRM
Accumulates rapidly but soon decreases through metabolism, in about 2 hours half the nicotine has decayed
Study - adult smokers given low nic and high nic cigs, those with low nic smoked 2x as much
Does not explain why people quit or why they return to the habit
What are the consequences of smoking? what happens if you quit?
Consequences
Primary risk factor for chronic obstructive LD: poor airflow resulting from decayed lung tissue (emphysema + dysfunction of small airways)
80% cases due for smoking
Quit after 15yrs, odds are similar to those who never smoked
What are the age and social-cultural factors in alcoholism?
Age diff
Begin 15-16 yr
Uni students: 63 binge, 35 8+ drinks (last year)
Most young adults/middle-aged in CAN drink, then prevalence decreases in older age
Socio-cultural diff
2 approaches: restrict (more intoxication) & integrate (more daily but moderate drinking) but changing (all intoxication)
First nations - less likely to drink, but for those who do, more likely to drink heavily
How do you define alc use disorder? How many adults in NA abuse alc?
AUD: drink heavily on reg basis AND suffer social/occupational impairments
17%, more males than females, 1/2 + are physically dependent
What are the factors that contributed to people starting on heavy alc?
Expects: heightened sociability, reduced tension + stimulant effects
Learning: watching pp turn up (ex: alc in movies = alc in real life)
Underage drinking predictors: more feelings of depression, friends drink allot, low school grades, parents who drink/don’t monitor drinking
Biological factors - genetic risk, heredity, modeling, higher tolerance, strong cravings
What are the short term effects of heavy drinking?
Enters the bloodstream through the small intestine - metabolises in liver
Biphasic effect: initially stimulates, later depresses
Interacts w/several neural systems (ex: bind gaba)
Accounts for sedating effect (judgement, movement)
What are the risks associated with fetal alc spectrum disorder? how much drinking will cause some effects?
Increased risk of fetal defects
Most severe form FASD (abnormal face, growth deficiency, CNS disorder, mental retardation)
Moderate/light drinking (2 a day) - unlikely FASD but linked with decreased cog functioning, increased risk of stillbirth, lower average birthweight
Name all the severe health issues that can arise from alc addicts?
Cirrhosis (blocks meta of protein/fat - scar tissue obstructs blood flow)
Capillary hemorrhaging - alc = vasodilation, exploding caps - face and skin all blotchy and gross
Brian damage - occurs in several structures of central NS + impairs perception + memory, my recover gradually after quits but some impairments may persist
Erectile dysfunction - damages blood vessels + contributes 2 hypertension/HD = erectile D
What are the different types of drugs? what are their effects if used chronically?
Stimulants
Phys + psych arousal, keeps user awake (caffeine/cocaine)
Chronic use - mental confusion, exhaustion, weight loss - can lead 2 psych dependence but not w/cocaine (phys d)
Depressants
Decrease arousal, increase relaxation (alc, benzos, barbs)
Chronic use: motor function decrease, emo stability decreases, can produce psych + phys dependence
Hallucinogens
Perceptual distortions (body or mind) - weed, mescaline, lsd, pcp
Chronic use: psych dependence, phys dependence w/marijuana
Narcotics
Relieve pain (opiates), euphoria + relaxed feeling (morphine, codeine, heroin)
Cause intense psych + phys dependence in continual large doses
Why do people do drugs?
What are the general resulting health defects?
Psych reasons - low self control, high sensation seeking
Social reasons: models of behaviour (friends + families), positive attitude gain/celebrities
Health: preg (born addicts), overdosing, driving drunk/high, damage 2 the lungs, cardio effects, neurological issues