Exam 15: Drug Addiction and the Brain’s Reward Circuits

Drug injection is common in medical practice because the effects of injected drugs are relatively __________ in comparison to most other conventional routes of drug administration.

Cocaine is frequently consumed in

Withdrawal from which of the following drugs has been likened to a bad case of the flu?

Modern theories of drug addiction suggest that addicts relapse after lengthy drug-free periods because of the effects of

Cocaine hydrochloride

Drugs that tend to increase neural and behavioral activity are classified as

Dementia, liver cirrhosis, and gastritis are often experienced by people addicted to __________.

The main psychoactive ingredient of coca paste is

Olds and Milner argued that the brain circuits that support intracranial self-stimulation are the same ones that mediate

A problem faced by theories of drug conditioning is predicting

The severity of withdrawal symptoms depends upon the

The before-and-after design is used to study __________ drug tolerance.

Cirrhosis and Korsakoff's syndrome are two of the consequences of chronic __________ consumption.

Drug tolerance is a shift in the dose-response curve

As compulsive drug taking develops, control of drug taking is thought to shift from the

A state of decreased sensitivity to a drug as a result of previous exposure to the drug is called

Evidence that the nucleus accumbens is involved in drug addiction comes from reports that

Many chronic addicts come to prefer the __________ route of drug administration.

Illustrated here is the location of the

The mesotelencephalic dopamine system comprises two pathways: The