The sensitization of which brain pathway is believed to be responsible for the excessive craving or ‘wanting’ exhibited in drug addiction?
a. The nigrostriatal dopamine pathway
b. The mesolimbic dopamine pathway
c. The tuberoinfundibular dopamine pathway
d. The mesocortical dopamine pathway
e. Sensitization of all of the above pathways is responsible for eliciting craving.
Answer: B
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A chewing gum manufacturer has a widespread TV advertising campaign that shows beautiful people consuming its product. Having seen these ads over a few weeks, you find yourself attracted to the chewing gum the next time you are at a convenience store. In this classical conditioning example, what is the unconditioned stimulus?
a. The chewing gum b. Your attraction to the beautiful people c. The beautiful people d. Your attraction to the chewing gum e. The chewing gum manufacturer
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A) 6; 2 to 3 B) 9; 3 to 4 C) 12; 4 to 5 D) 18; 5 to 6
The leading cause of death among preschool children in the United States is
A) accidental injuries. B) the use of illicit drugs. C) lack of immunization to childhood diseases. D) malnutrition.