A stimulus that invariably causes an organism to respond in a certain way is a(n) ______
a. effector
b. unconditioned stimulus
c. reflex initiator
d. conditioned stimulus
B
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Jess is fast asleep, and her roommate Crystal is studying in the next room. Their cat knocks a lamp off of the bookshelf. Crystal jumps up from her desk, but Jess remains asleep. According to your notes, what brain structure is responsible for raising or lowering the thresholds of conscious awareness, such that Crystal reacts to the sound of the lamp falling and Jess is unaware of it?
A. reticular formation B. substantia nigra C. globus pallidus D. corpus callosum
The gender differences in emotional expressivity may be related to the finding that
a. girls are more sensitive. b. boys can control their feelings with greater ease. c. as early as the preschool period, parents talk more with daughters than with sons about emotions. d. females have deeper emotions.
Laboratory studies have not been able to document impaired driving performance after smoking marijuana
Indicate whether the statement is true or false
During the school year, Jim spent a lot of time learning new things, but during the summer, he had a monotonous job and didn't engage in any mentally stimulating activity. His sleeping habits were the same all year, but based on research done with rats, Jim is likely to spend __________ time in REM sleep during the __________.
A. more; school year B. less; school year C. about the same amount of; school year and the summer D. almost no; school year or the summer