When Scarlett went to her doctor, he gave her a hearing test. During the test, the doctor presented tones to Scarlett through earphones. The tones started at a low intensity and then became louder. The doctor asked Scarlett to raise her hand whenever she started to hear a sound. The doctor was testing Scarlett's __________.
A. auditory convergence
B. absolute threshold
C. refractory threshold
D. difference threshold
Answer: B
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Last month, Walter became sick after eating two chili dogs, so he no longer likes chili dogs. Walter has experienced __________.
A. blocking B. a taste aversion C. operant taste conditioning D. noncontingent conditioning
When Walter's blood sugar dips, he becomes hungry. He eats, and then he is no longer hungry—his body is back in balance. This balancing is an example of
a. the two-factor model. b. instinct. c. homeostasis. d. optimal level of arousal. e. self-actualization.
In addition to sign language, chimpanzees have been taught to communicate with humans by using:
A. puppets B. symbols on a board C. crude handwriting D. words in the form of primitive vocalizations
Which person would be most likely to show greater immune system problems?
a) Hayley, a 17-year-old who is studying for the SATs b) Amy, a 25-year-old whose cat just died c) Keith, a 65-year-old who has been caring for his mother who suffers from Alzheimer's d) Mark, a 40-year-old who just lost his job