Which of the following statements is true concerning cocaine use in the United States?
a) During the Civil War, many Confederate soldiers bought cocaine from Union soldiers.
b) At one time, cocaine was an ingredient in Coca-Cola.
c) Cocaine was used by early Greek philosophers.
d) One of the powerful addictive ingredients in cocaine is heroin.
b
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Taste receptor cells are located on which area of the body?
A. the microvilli B. the ossicles C. the taste buds D. the gustatory bulb
What did Cohen and colleagues find when they surveyed adolescents to study the prevalence of personality disorders?
a. Personality disorders were almost non-existent. b. The most common personality disorder in the sample was antisocial personality disorder. c. Fewer than half the adolescents who originally met the diagnostic criteria still met the same criteria two years later. d. If strictly applied, the criteria would lead to a diagnosis for almost every adolescent in the sample.
Which structure is important to the sense of touch?
a. ?Krause’s end bulbs b. ?Merkel’s disks c. ?Pacinian corpuscles d. ?free nerve endings
Rachel is training her dog Duke to bark every time someone knocks on the door. She already knows that seeing the family cat will make Duke bark, so she decides to knock on the door and then open it to reveal the cat in an effort to condition Duke to bark. What is serving as the unconditioned stimulus?
A) the cat B) the knock C) Duke's bark D) Rachel