Loudness of high-pitch sounds is determined by __________, whereas loudness of low-pitch sounds is determined by __________.
A. rate of firing; the number of axons active at a time
B. the number of axons active at a time; rate of firing
C. rate of firing; sensation
D. the number of axons active at a time; perception
Answer: A
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Dr. Wilson is reading a mammogram. She knows that one way to increase the accuracy of the mammogram is to:
A. focus her attention on the black spots since they indicate tumors B. use a powerful magnifying glass C. reduce the lighting, which will lower the absolute threshold D. ask another doctor to read the mammogram
According to humanistic theories, much of human unhappiness results from ____
a. ?an inability to reach self-actualization b. ?the denial of feelings c. ?conditional regard d. ?egocentricity
Regarding the statistics on HIV/AIDS, which of the following statements is FALSE?
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Piaget's sensorimotor stage begins at birth and ends when the child is 5 years old
Indicate whether the statement is true or false