Milgram is known for his research in

A characteristic of REM sleep includes

a. synchronized EEG activity. b. muscle paralysis. c. low rate of firing of ACh neurons in the dorsal pons. d. suppressed genital blood flow. e. night terrors.

Researchers sometimes use animals to study questions related to child development because

A) it is too difficult, time-consuming, and expensive to conduct correlational research. B) there are no ethical guidelines for conducting research with animals. C) it would be unethical to manipulate certain variables of interest in humans. D) children younger than six years of age cannot participate in psychological research.