PS263 Chapter 14: PS263 ch14 textbook
Document Summary
Addiction- condition marked by repetitive craving and the potential to harm one"s life. Antabuse- drug that antagonizes the effects of acetaldehyde dehydrogenase by binding to its copper ion. Agonist- a drug that mimics or increases the effects of a neurotransmitter. Methadone- drug similar to heroin and morphine that is taken orally. Type ii (or type b) alcoholism- alcohol abuse with rapid onset and a strong genetic basis. Type i (or type a) alcoholism- alcohol abuse with gradual onset; only a weak genetic predis- position. Affinity- tendency of a drug to bind to a receptor. Nucleus accumbens -brain area that is rich in dopamine and is central to the brain"s rein- forcement system. Self-stimulation of the brain- behavior that is reinforced by electrical stimulation of a brain area. Antagonist- a drug that blocks a neurotransmitter. Efficacy- a drug"s tendency to activate the receptor. Most of the commonly abused drugs derive from plants.
