PSYCH 1 Chapter Notes - Chapter 33: Reward System, Parasympathetic Nervous System, Operant Conditioning
Document Summary
Overview of notes drugs and rewards; dopamine and the reward system; tolerance and withdrawal. Biological rewards : neuron communication; synapses; neurotransmitters; recreational. Environmental rewards : law of effect; behaviorism; operant conditioning and the game. Discussion : engineers of addiction loop (stimulus; response; reward; hook). Dopamine regulates motor behavior; motivation and pleasure; emotional arousal. Serotonin regulates appetite; sleep; memory; learning; temperature; mood. Gaba inhibits neurons in most areas of the brain for mature adults; may help neurons develop in the brain. Acytelcholine increases arousal, vigilance, and attention; retrieval of memory; regulates the sympathetic nervous system . activates and inhibits skeletal muscles; regulates the parasympathetic nervous system. Rat pressed bar up to 7,000 times / hour. Read : types of drugs and major effects. Demo : cannabis and alcohol on the brain. Downregulation [tolerance] : brain reduces in sensitivity to a certain stimulus with repeated exposure. ( this should sound similiar to something we talked about in week 3 )
