PSYCH 1000 Chapter Notes - Chapter 4.4: Sympathetic Nervous System, Frontal Lobe, Opiate
Document Summary
People use and abuse many psychoactive drugs: addiction: drug use that remains compulsive despite its negative consequences, psychoactive drugs are mind altering substances that typically are taken for recreational purposes. Some work by interfering with the normal reuptake of dopamine by the releasing neuron while others also increase the release of dopamine. The increased dopamine is associated with greater reward or liking; the dopamine increases the desire to take a drug, even if it doesn"t produce pleasure. Examples: cocaine, amphetamines, methamphetamine: depressants: have the opposite effect of stimulants; reduce behavioral and mental activity by depressing the central nervous system. Most common is alcohol: opiates (narcotics): are able to bond with endorphin receptors and help relieve pan. Provide intense feelings of pleasure, relaxation, and euphoria. Increase pleasure by binding with opiate receptors and increase wanting of the drug by activating dopamine receptors. Long term use is associated with neurological and cognitive deficient, such as memory or attention problems.
