Stimulant medication prescribed to treat attention-deficit hyperactivity disorder (ADHD) seems to __________ activity in the __________, thereby lessening impulsivity and hyperactivity and improving attention in most children who take it.
A. increase; hypothalamus
B. decrease; hypothalamus
C. increase; prefrontal cortex
D. decrease; prefrontal cortex
Answer: C
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Fixation only occurs at the anal stage.
Answer the following statement true (T) or false (F)
The observation that working collectively provides members of a group the chance to "slack off" based on the expectancy that the rest of the group will do the work is called:
a. the slacker mentality b. social loafing c. social slacking d. social facilitation
In an autoimmune disorder such as ______, the body's immune system attacks ______.
A. multiple sclerosis; other normal body cells B. rabies; premalignant cells C. multiple sclerosis; immune cells D. rheumatoid arthritis; premalignant cells
According to the text, about what percent of retired U. S. adults over age 65 rely on Social Security as virtually their only source of income?
a. about 8% b. about 15% c. about 31% d. about 40%