Cite evidence from the human and rat literature which suggests that obesity is not caused merely by a weak will
What will be an ideal response?
Answer: The genetic literature suggests that there is a strong heritability factor for obesity. Although no simple genetic defect has been found for obesity, it is clear that there are important differences in metabolism that result in some persons easily gaining weight during periods of access to high energy diet, while others appear to be resistant to gaining weight. Finally, genetic mutations in feeding relevant pathways (e.g., leptin, MC-4R) in animals are routinely found to produce overeating and weight gain. Animals are not commonly thought of as having a weak will.
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What has research shown concerning the link between schizophrenia and the lateral ventricles of the brain?
a. On average, schizophrenics have enlarged lateral ventricles. b. All patients with schizophrenia have enlarged lateral ventricles. c. Enlarged lateral ventricles are found only in schizophrenia. d. Enlarged lateral ventricles predict early onset of schizophrenia.
Which neurotransmitter is released by stimulated neurons to dilate the blood vessels?
a. endorphins b. glycine c. nitric oxide d. acetylcholine