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

Multiple Choice

The Focus on Neuroscience box "Dopamine Receptors and Obesity" discussed a study in which women drank a rich chocolate shake and then researchers scanned their brain with fMRI. Six months later, the women returned and drank the shake again, and again the researchers scanned their brain. What happened to the women who had gained weight in the six-month interval between brain scans?

A) They showed no difference in dopamine response to the milkshake between the two scans.
B) They showed an increase in dopamine response to the milkshake during the second scan.
C) They showed a decrease in dopamine response to the milkshake during the second scan.
D) They showed no dopamine response to the milkshake during the second scan.