The Focus on Neuroscience box, "Dopamine Receptors and Obesity," discussed a study in which the diet of rats was manipulated. One group ate rat chow-a nutritionally balanced diet-while the other group ate junk food-high-fat, sugary foods. What happened to the rats on the junk-food diet?

Question

Quizplus · Accepted Answer

The rats on the junk-food diet had a significantly reduced dopamine response. This is because overeating junk food can lead to a decrease in dopamine receptors, which can ultimately result in less sensitivity to pleasure and reward, and an increased risk for obesity.

The Focus on Neuroscience Box, "Dopamine Receptors and Obesity," Discussed