PSY100H1 Chapter 3: chapter 3 textbook notes
65
PSY100H1 Full Course Notes
Verified Note
65 documents
Document Summary
Chapter 3: genome: provide detailed instructions for everthing (cid:0) genome provides the option, and the environment determines which option is taken, chromosomes: structure made up of genes genes are components of dna. Dna constists of two intertwined strands of molecules of sugar, phosphate and nitrogen. * nicotine excites ach, heighten attention; when give up, perform poorly than non- smokers: monoamines: regulate states of arousal and affect and to motivate behavior. * serontonin: emotional states, impulse control and dreaming. * dopamine: motivation and motor control; rewarding quality (cocaine: block the reuptake of dopamine; parkinson"s disease: depletion of dopamine) :arousal and alertness: gaba: primary inhibitory transmitter in the nervous system and hyperpolarize postsynaptic membranes. *cck: highest concentration in cerebral cortex; learning and memory, pain transmission, exploratory behavior; social anxiety; fullness. *endorphins: natural pain reduction and reward; placebo effect; associated with euphoric feeling.
