The Focus on Neuroscience Feature Discusses a PET Scan Study

question 64

Multiple Choice

The Focus on Neuroscience feature discusses a PET scan study comparing the brains of normal-weight individuals and obese individuals. One finding in the study was that compared with the normal-weight individuals, the obese individuals had:

• A) significantly fewer dopamine receptors in their brains.
• B) significantly lower levels of the neurotransmitter neuropeptide Y in various brain areas, most notably the hypothalamus.
• C) significantly more dopamine receptors in their brains.
• D) significantly higher levels of the neurotransmitter neuropeptide Y in various brain areas, most notably the hypothalamus.