Which of the following is a true statement about fetal activity and inactivity?
a. fetuses do not have true sleep states but they do have periods of inactivity while awake
b. fetuses have periods of high activity and rest while awake and they have both active and quiet sleep states
c. fetuses are essentially asleep most of the day and night but their sleep can be active or quiet
d. fetuses are in constant motion throughout the day and night
Answer: b. fetuses have periods of high activity and rest while awake and they have both active and quiet sleep states
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According to the principles of operant conditioning, what happens when negative reinforcement is applied?
a. behavior increases b. behavior decreases c. behavior is punished d. behavior remains at the same level
Even young infants have surprisingly well-developed capabilities in areas such as
A) perceptual skills. B) adaptation. C) assimilation. D) equilibration.