Mechanisms of addiction Flashcards
addiction=
the continued repetition of behaviour despite adverse consequences
ambivalence=
holding 2 mutually contradicting values
what is end stage addiction
when drug becomes salient (most important thing in life)
changes to prefrontal cortex cause drug taking to become an almost automatic habit
name 4 factors of dependancy syndrome
Salience Tolerance Withdrawal symptoms Compulsion ect
what is a pre-contemplator
people not ready/ not planning to take action in foreseeable future
what is a contemplator
people beginning to recognise behaviour is problematic
is there a genetic risk of being alcoholic
yes
is there an alcohol gene
no single gene
what causes Asian flush
acetaldehyde dehydrogenase gene
4 things that maintain addiction
personality factor
Social factors
Altered physiology in continuos presence of drug
unpleasant effect when drug is absent
what class is alcohol dependancy most common in
social class 5
pleasure molecule=
dopamaine
where is dopamine generated
ventral tegmental area
where is dopamine released into
nucleus accumbens
where in the brain do electrodes have the same effect as addiction from cocaine
Nucleus accumbens
what dopamine pathway is associated with forming habits
into the frontal cortex
what is the pleasure centre of the brain
nucleus accumbens
what makes a substance addictive
Pleasure producing potency
Rapid onset of action
short duration of action
tolerance and withdrawal
