Isabel had been taking Valium, a benzodiazepine, for a few years to calm her nerves and
help her sleep. She had her dosage increased by her doctor because her previous dosage
wasn”t helping her sleep at night anymore. One night, she went out with her husband
for his company’s annual Christmas party. She had never been much of a drinker, but
that evening she wanted to enjoy a few cocktails. She was very careful not to mix her
Valium with alcohol, as her doctor had warned her. Towards the end of the evening,
Isabel realized that she had had at least 5 cocktails and didn’t feel drunk at all. Which
term may best describe why this happened?
a. Cross dependence
b. Cross tolerance
c. Up-regulation
d. Co-transmission
Which of the following statements about persons who suffer from
obsessive-compulsive disorder (OCD) is most true?
a. They apparently have no preference for a specific compound.
b. They tend to prefer CNS depressants such as the benzodiazepines.
c. They tend to prefer CNS stimulants such as methylphenidate or ephedrine.
d. They tend not to abuse chemicals at all because they fear the loss of control that
substance abuse might bring, and persons with OCD are heavily invested in control.