Deep brain stimulation of the __________ can improve symptoms of obsessive-compulsive disorder.

Although dependence clearly is associated with exogenous opiates, tolerance does not occur

a. True. b. False.

The Harrison Narcotics Act, which was passed in the U.S. in 1914, unintentionally encouraged the use of

A) Aspirin. B) Street's Infant Quietness. C) cocaine. D) opium. E) heroin.