When a person is shut off from the world, such that he or she cannot even tell what time it is by light or dark for several days, this person's sleep-waking cycle will
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 almost 25 hours.
d. become completely disrupted.
C
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Students have found that if their psychology teacher repeats a term "three times," this term will definitely be on the test. Paying attention to specific stimuli illustrates the students'
a. perceptual learning. b. convergence. c. auditory accommodation. d. ability to use reality testing.
Sound can best be thought of as __________.
A. compression of air molecules by an object B. changes in air pressure produced by the vibration of an object C. waves of acoustic energy that travel at fewer than 20 miles per hour D. expansion of air molecules produced by a traveling object
A research scientist wants to observe the nonconscious aspects of memory. The test subject will not be conscious of being tested. What kind of test would the scientist give to observe the results?
a. source judgment test b. implicit memory test c. recall memory test d. recognition review test
Which of the following is characteristic of delirium?
A. Delirium is characterized by reduced clarity of consciousness and cognition. B. Delirium develops over a course of several hours or days. C. Delirium was one of the first disorders to be recounted in history. D. all of the above