Elizabeth was driving on the freeway when a car passed abruptly in front of her and almost hit her vehicle. As a result of the stress produced by this incident, her heart rate increased and she feels "on edge."
Which of the following neurotransmitters is likely responsible for Elizabeth's response?
A) serotonin
B) dopamine
C) GABA
D) norepinephrine
Answer: D
Rationale: Norepinephrine is synthesized from dopamine molecules and is involved in regulating stress responses, including increasing arousal, attention, and heart rate.
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A. The IUD B. The pill C. Tubal ligation D. Vasectomy
If following the pattern of findings in the U.S., which person would be LEAST likely to adhere to gender role stereotyping?
a. Keonna, an African American female b. Jacob, a Caucasian male c. Abby, a Caucasian female d. There are no differences between ethnic groups or genders so all would be equally likely to adhere to gender-role stereotyping.
The observation that guns and knives can serve as strong cues for aggressive behavior is known as the
a. ethological perspective. b. mean worldview. c. weapons effect. d. heightened arousal effect.
A growing number of researchers regard the question of how much heredity and environment each contribute to differences among people as __________
A) unanswerable B) answered mainly by DNA C) unimportant D) answered easily with kinship studies