Glynnis has attention-deficit hyperactivity disorder. She has been given a medication that helps her to remain focused and calm her body. How does this drug work?
a. The drug depresses activity Glynnis’s brain so that she can focus.
b. The drug provides the brain with the stimulation it seeks.
c. The drug stimulates only those areas of the brain responsible for focus.
d. The drug depresses the brainstem of Glynnis’s brain, which improves concentration.
Answer: B
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Infants who weigh less than 2,500 grams (about 5½ pounds) at birth are classified as which of the following?
A. low-birthweight infants B. preterm infants C. small for gestational age D. very low birthweight infants
Sandy asked Professor Alperson how decreased volumes in cortical structures and enlarged ventricles predispose a person to schizophrenia. Having read the recent research, Professor Alperson says, ____
a. "They reduce dopamine activity in the brain by blocking dopamine receptor sites in post-synaptic neurons." b. "They increase the availability of dopamine and norepinephrine in the brain and increase the severity of the symptoms." c. "They may create subconnections between different brain regions, thereby overloading neural circuitry." d. "They may result in weak or aberrant connections between the different brain regions, leading to reductions in the integrative function of the brain."
Under normal circumstances, the only source of energy used by the brain is a. glucose
b. fatty acids. c. protein. d. glycogen.
The "blue discount suit" refers to:
A. graft. B. bribes. C. gratuities. D. seizures.