Why do we sleep? What do sleep deprivation studies tell us about the answer to this question?
What will be an ideal response?
* REM sleep may be necessary for the development of infant brains by providing the stimulation they cannot provide.
* The body apparently needs REM sleep because the release of monoamines would otherwise wear out their receptors; monoamine release ceases during REM sleep.
* Sleep appears to be necessary for some rest and repair, as well as the increased secretion of human growth hormone.
* Sleep deprivation studies seem to suggest that long-term sleep deprivation often leads to lapses in attention, forgetfulness, and impaired performance (called microsleeps), but there are no long-term harmful effects.
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A polysomnograph displays ____
a. action potentials of individual neurons b. a combination of EEG and eye-movement records c. the rate of glucose uptake in active regions of the brain d. the electrical resistance of the scalp
A behavioral definition:
a. is ambiguous b. is subjective c. involves identifying traits d. describes specific behaviors
According to the text, about what percentage of cohabiting couples in the U. S. today are over the age of 40:
a. about 10% b. about 20% c. about 35% d. about 70%
A child who responds by saying "I like trucks" after her mother says "Eat your peas!" has demonstrated which of the following?
A. a non-contingent response B. a contingent response C. a violation of the maxim of quality D. private speech