PSYC 200 Lecture Notes - Lecture 18: Tylenol (Brand), Homeostasis, Hallucinogen

• School: University of Calgary
• Department: Psychology
• Course: PSYC 200
• Professor: Kathleen Hughes

Document Summary

Not all of us produce the same amount. Doing certain things can enable us to produce enough endogenous chemicals to make us high (i. e. meditation for downer drugs, runners high: exogenous chemicals, externally derived drugs; mimic indigenous chemicals. When exogenous chemicals are introduced, brain will produce less endogenous chemicals in response to it = maintaining homeostasis. Need more: deregulation: random spikes of chemicals being produced (bipolar behaviours?, environment cues: same amount of alcohol/person experiment in bar and office. Increase gaba (inhibitory neurotransmitter: releases dopamine, experiment: alcoholics at 30 and socially anxious children = similar brain structures. Doesn"t change our level of alertness; just changes ability to read alertness: blocks adenosine; blocks chemical that lets us know were sleepy. Still amount of tired, but we don"t know it: true amphetamines, real stimulants = release more norepinephrine = more alert and focussed in their environment, hyperactive people given stimulants; not enough focus despite excess energy.