Brian is a heavy cocaine user. What is occurring in his brain because of his use of cocaine?
A. There is an increase in the amount of dopamine produced in the brain.
B. Cocaine stimulates the growth of dendrites.
C. There is a reduction in the number of dopamine receptors in the areas of his brain involved in reward and pleasure.
D. There is a reduction in the number of acetylcholine receptors in the areas of his brain involved in memory.
Answer: C
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Which factor is associated with the best chances for recovering from schizophrenia?
a. Being male b. Being single c. Having a high educational background d. Having a low premorbid level of functioning
Collier is leafing through a stack of questionnaires that have been completed by adult males in a research study. One respondent has listed his height as 6 feet, 5 inches, but the occupation is difficult to read. It might be basketball player or bank president. Collier decides it must be basketball player and enters that information into the computer. In this case, Collier has probably based his
decision on: a. the representativeness heuristic b. the availability heuristic c. anchoring and adjustment d. a means-ends analysis of the data
Which question could be answered best by using the survey method?
a) What is the effect of ingesting alcohol on problem-solving ability? b) Does wall color affect the frequency of violence in prison populations? c) Do students prefer a grading system with or without pluses and minuses? d) What is the relationship between the number of hours worked and grade-point average?
Sandra's physician scheduled her for amniocentesis. What is likely to happen when she undergoes the procedure?
a) Some fetal cells will be removed to determine if her fetus has any genetic defects. b) Some cells from her bones will be removed in order to test for diseases related to aging. c) Her arteries will be scanned for deposits of cholesterol that would put her at risk for heart disease. d) A sophisticated brain scan will provide physicians with a picture of her brain cells to help determine if she is at risk for Alzheimer's disease.