Why does nicotine produce a pleasurable feeling?
a. It increases dopamine in the brain's pleasure center.
b. It interferes with the reuptake of dopamine.
c. It binds to serotonin receptors.
d. It blocks adenosine receptors in the limbic system.
A
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What can sleep scientists say about people who do not get enough sleep?
a. Their cortisol levels increase. b. They develop sleep apnea. c. They become prone to narcolepsy. d. Their creativity often increases.
Which of the following has self-modification been proven to help?
a. Depression b. Severe premenstrual symptoms c. Obsessive-compulsive disorder d. All of the above
Children who have problems of undercontrol of their emotions are at risk for ____
a. ulcers and other physical problems b. aggression and conflict in early childhood and beyond c. not realizing their academic potential d. not likely to have serious relationships as adults
Jason is almost 4 years old, and his parents notice that he is always moving, has difficulty being quiet, and seems to talk constantly. If he is diagnosed with ADHD, it is likely he is in the __________ stage of the disorder
A) first B) second C) third D) fourth