An effective way to establish a reliable pattern of intravenous self-administration of nicotine in rats is to
a. provide the drug in very high doses.
b. use a differential reinforcement of low rates (DRL) schedule.
c. pair the nicotine infusions with a discriminative stimulus, such as a light cue.
d. pre-treat the rats with mecamylamine.
e. None of the above—nicotine is never administered intravenously to rats.
Answer: C
Psychology
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Indicate whether the statement is true or false
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According to Freudian theory, at least in its later form, there are two broad categories of instincts: life instincts called Eros and death instincts called _______
a. Thanatos b. Anti-Eros c. Demonic d. Phallos
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