Briefly discuss the reasons for needing sleep.
What will be an ideal response?
Students' answers may vary.
The answer should contain the following information:
Some researchers, using an evolutionary perspective, suggest that sleep permitted human ancestors to conserve energy at night, a time when food was relatively hard to come by. Consequently, they were better able to forage for food in the daytime. Others suggest that the reduced activity of the brain during non-REM sleep may give neurons in the brain a chance to repair themselves. Another hypothesis suggests that the onset of REM sleep stops the release of neurotransmitters called monoamines, and so permits receptor cells to get some necessary rest and to increase their sensitivity during periods of wakefulness.
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The neurons involved in vision begin to myelinate ____ and complete the process of myelination ____ than those involved in hearing
a. later? later b. sooner? sooner c. later? sooner d. sooner? later
Which statement regarding deception in psychological research is TRUE?
A) Deception cannot be used. B) Deception is a standard practice to minimize demand characteristics and does not need to be justified. C) Deception can be used only when alternative procedures are not available and the study has applied or scientific value. D) Deception can be used anytime it answers an important scientific question.
In China, cannabis has been cultivated for at least ______ years
a. 1,000 c. 50,000 b. 5,000 d. 500,000
What term refers to the degree of assistance provided to the adolescent who is not yet able to perform a task or skill according to theorists who espouse Vygotsky's view of cognitive development?
a. scaffolding b. zone of proximal distance c. area of competence d. structuring