Psychoactive drugs are substances that ____
a. ?influence the brain without affecting behavior
b. ?influence the brain and thereby affect behavior
c. ?affect behavior without influencing the brain
d. ?neither influence the brain nor affect behavior,
ANSWER:
b
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During the peer review process, whose work is most likely to be accepted rapidly into the body of scientific knowledge?
a. Dr. Gupta’s, whose research led to unexpected and unique results b. Dr. Koch’s, whose results fit with existing knowledge in her field c. Dr. Anton’s, who used novel research methods and produced unconventional findings d. Dr. Dunn’s, whose results are unreplicated in previous reports in his field
Waking is associated with a. alpha waves only
b. beta waves only. c. alternations between alpha and beta waves. d. alternations between alpha and theta waves.
The importance of leptin is indicated by the fact that ______.
A. injecting leptin into ob/ob mice reduced their weight B. injecting leptin into db/db mice increased their weight C. injecting leptin into ob/ob mice increased their weight D. injecting leptin into db/db mice decreased their weight
One of the functions of the myelin sheath is to
a. insulate axons from each other. b. receive messages from other neurons. c. slow down the rate of action potentials. d. speed up or enhance the reuptake of neurotransmitters. e. transmit messages from the cell body to the axon.