PSYC 370 Chapter Notes - Chapter 15: Flatulence, Fetal Alcohol Spectrum Disorder, The Incentive
7 Feb 2018
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Chapter 15 drug abuse drug addiction and the brain"s reward circuit. Psychoactive drugs influence subjective experiences and behavior by acting on the nervous system. Drug administration absorption and penetration of the central nervous system: there"s oral injection inhalation and absorption through mucous membranes. Drugs will dissolve in the fluids of the stomach and are carried to the intestine where they are absorbed into the bloodstream when taken orally. Drugs that are not readily absorbed or that are broken down into inactive metabolites which are breakdown products of the body"s chemical reactions, before they can be absorbed must be taken by some other route. Oral is easy and relatively safe however it is unpredictable. Injection has strong effects their fast and predictable. They are often injected subcutaneously into the fatty tissue just beneath the skin, intramuscularly is into the large muscles or intravenously is directly into veins.
