Dr. Arthur and his colleagues are investigating a new drug for depression that stimulates serotonin receptors. Dr. Arthur is most likely investigating which kind of drug?

The hallmark symptom of autism is

a. lack of language. b. lack of interest in other people. c. intellectual disability. d. strange behaviors.

Stephanie reports to her physician that she suddenly cannot sleep because she is unable to tune out noises such as the humming of the refrigerator or an occasional car driving down the street. After undergoing an MRI, she finds out that she has a tumor in her ____

a. reticular formation b. cerebellum c. hippocampus d. thalamus v