In a study of the effects of sleep on driving performance, sleep would be the:
a. control group.
b. independent variable.
c. experimental group.
d. dependent variable.
b
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What is the main source of nutrition for vertebrate neurons?
a. fats b. glucose c. sodium d. complex carbohydrates
Tolerance develops to the effects of __________
a. barbiturates b. methaqualone c. benzodiazepines d. all of these
Jane and John were always able to leave baby Rebecca with a baby-sitter, but now, at 6 months of age, she begins to cry loudly when they leave. This separation anxiety indicates that Rebecca:
a. is somewhat delayed in her development b. must have suffered some type of birth defect c. has formed a close attachment with her parents d. will be a child who always clings to her parents
Ghaffar and colleagues completed a brain study with conversion disorder patients and found that
a. stimulation of limbs resulted in impaired brain activity for both healthy and “numb” limbs b. stimulation of limbs resulted in impaired brain activity for healthy but not “numb” limbs c. stimulation of limbs resulted in impaired brain activity for “numb” but not healthy limbs d. there were no differences between this group and the healthy controls