When people are shut off from the world, such that they cannot tell what time it is by light or dark for several days, their sleep-waking cycles will most likely
a. stay exactly as it was since this cycle is innate and cannot be modified.
b. shorten to an average of about 20 hours.
c. lengthen to more than 24 hours.
d. become completely disrupted and erratic.
ANSWER: c
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The left cerebral hemisphere primarily controls __________.
A. the right side of the body B. the left side of the body C. all motor functions D. spatial reasoning
Which of the following is the equivalent in the legal system of failing to reject the null hypothesis?
a. The defendant is guilty and sentenced to prison. b. The judge calls a mistrial after unreliable evidence is introduced. c. The defendant is not guilty although he is not necessarily innocent. d. The defendant is found not guilty by reason of insanity and sent to a mental hospital.
In addition to effects on synapses, what else do antidepressant drugs do?
a. They increase muscle production and improve physical strength b. They increase production of new neurons and improve learning. c. They increase the velocity of action potentials and improve reaction times. d. They increase synthesis of hormones and increase sex drive.
Many cells in association areas of the brain respond to more than one sensory modality
a. True b. False Indicate whether the statement is true or false