Why do researchers believe the amygdala plays an important role in emotion?
a) When the amygdala is removed, animals lack fear and rage responses.
b) The neurotransmitters that power the amygdala can be affected by a wide range of events.
c) The amygdala is much smaller in individuals who have serious psychological disorders.
d) The amygdala is the brain structure responsible for coordinating the central nervous system.
A
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Which statement reflects the research findings related to cigarette advertising and smoking among adolescents?
a) Ninety percent of smokers begin smoking by age 15. b) The effect of advertising on brand choice is weaker in adolescents than in adults. c) Anti-tobacco advertising has not proven to be effective in decreasing adolescent smoking. d) Online advertising of e-cigarettes has increased even though the health effects of these cigarettes remain uncertain.
Qualitative changes are best thought of as changes in _____, while quantitative changes are best thought of as changes in _____.
A. amount; type B. size; shape C. kind; degree D. continuity; discontinuity