How might adolescents' tendency to engage in such risky behaviors as street racing and experimental drug use reflect brain development phenomena?
a) The corpus callosum is still developing during adolescence, impeding communication between the two hemispheres of the brain.
b) The left hemisphere matures more slowly than the right, delaying the development of logical thinking abilities.
c) The prefrontal cortex matures slowly, retarding adolescents' ability to control their impulses.
d) The limbic system does not develop fully until early adulthood; adolescents therefore have a poor understanding of their own emotions.
ANS: C, The different systems in the brain mature at different rates during adolescence, with the part of the brain encouraging reward-seeking behavior developing before the systems that regulate or control impulsive behavior.
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Jeremy is gathering research for his paper. What sources of information should he be very careful when using?
a) Scientific journals. They tend to be confusing and not appropriate for anything other than graduate level research papers. b) Libraries and librarians. They tend to recommend only material that they are comfortable with. c) Encyclopedias and textbooks. Simply put, they are rarely a good source. d) The Internet. Not everything found there is correctly written by true experts.
Illnesses in which psychological factors contribute to bodily damage or to damaging changes in bodily functioning are called
a. somatic symptom disorders. b. hypochondriasis. c. physio-disturbances. d. psychosomatic disorders.