Dr. Edmonson is working in the lab with cultured neurons. He applies a drug that inhibits acetylcholinesterase. What does he expect to have occur?
A. Acetylcholine will remain active in the synapse longer.
B. Acetylcholine will be removed from the synapse faster.
C. More acetylcholine will be released from the presynaptic cell.
D. Acetylcholine will no longer be able to bind to post-synaptic receptors.
Answer: A
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Kisilevksy et al. (2003) showed that fetuses one to two weeks before birth recognized their mother’s voice. This was accomplished by:
a. measuring differences in the infant’s heart rate. b. observing differences in motor behavior when the infant is in the presence of his or her mother or when the infant is in the presence of another woman. c. training the infant in a conjugate reinforcement task. d. retrospectively asking children about such experiences when they are much older.
The working models of the self and others that form in infancy
A) usually change as the result of later experience. B) affect relationships with the parents but not with others. C) predict relationships with friends and romantic partners in adolescence. D) lose their importance after early childhood.
Reducing class size
B) greatly improves academic achievement in the high school years. C) A) greatly improves academic achievement in the early grades. works best when classes are reduced from 35 to 25 students. D) All of the above.
Regarding one's personal goals and happiness, which of the following statements is FALSE?
a. The importance of personal goals helps explain why specific circumstances tell us so little about happiness. b. It is often difficult to know if an event is good or bad without knowing what a person is trying to achieve in life. c. People tend to be happy if they are making progress, on a day-to-day basis, on smaller goals that relate to long-term, life goals. d. Attaining goals even if these goals do not express our deeper interests and values will still add considerably to our overall happiness.