PS101 Lecture 4: PSYCH LESSON 4
Document Summary
13. serotonin sights: up to 30% drop in serotonin levels in heavy users harmless, caffeine normal use is 5-6 cups of coffee a day are, takes 45 minutes to an hour for caffeine to work. Idea is that there is abnormal activity in one area and try to bring it down to normal state. Inhibit neural activity by mimicking endorphins i. (body"s natural pain relievers: problem: after a while, they will damage the body"s ability to produce endorphins and can"t synthesize. Stimulants increase/excite activity: amphetamines, cocaine produces initial rush of dopamine and norepinephrine for first 30 minutes then axons suffer sever depletion and have a dopamine crash (go down further than normal) i. 17. serotonin and dopamine, and in some cases they block activity. How drugs inhibit transmission: agonists drugs that increase neurotransmitter activity, antagonists activity, drugs that inhibit or decrease neurotransmitter, blocks neurotransmitter from entering. It is relatively new, and researchers haven"t studied it sufficiently amphetamines and hallucinogens.
