John travels frequently to distant parts of the globe. He believes that adjusting his mealtimes to the destination time zone is helpful in dealing with jet lag. After studying the material in your textbook, you tell John that
a. he's wasting his time, as adjusting his mealtimes will have little if any effect on jet lag
b. he should expect some benefits, as his suprachiasmatic nucleus (SCN) is very responsive to changes in feeding patterns.
c. he should expect some benefits, as his peripheral clocks should respond to changes in feeding patterns.
d. this is a highly effective strategy, because both his SCN and peripheral clocks are highly sensitive to changes in feeding patterns.
c
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The process of brain development characterized by intense cell growth originating in stem cells is called
a. migration. b. proliferation. c. differentiation. d. mutation.
Why is it that every axon in an adult mammal has a target cell (muscle cell or other neuron) with which it makes synaptic contact?
A. Each target cell causes the growth of a neuron and its axon. B. After formation, axons release a chemical that causes a target cell to form. C. Axons that fail to find a target cell die. D. An axon will make contact with any kind of cell and adjust its function as necessary.
While attempting to identify neural receptors that trigger salivary glands, Ivan Pavlov inadvertently found that reflexes can be learned through
a. contingency. c. instinct. b. dissociation. d. association.
Which of the following conclusions was NOT asserted in the controversial book The Bell Curve?
a. There is such a thing as a general factor of cognitive ability on which human beings differ. b. IQ tests measure this general factor most accurately. c. IQ scores are subject to change over a person’s life span. d. Properly administered IQ tests are not biased against different racial groups.