Stem cells in brain regions involved in learning and memory seem to divide and mature:
a. only during the first few months of pregnancy.
b. until the age of 1 year.
c. until puberty is reached.
d. throughout adulthood.
Answer: d
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Which of the following statements best summarizes the research on self-esteem?
a. Research studies consistently find a drop in females' self-esteem during adolescence. b. Consistent gender differences are found throughout the lifespan. c. Gender differences in self-esteem are inconsistent; the differences depend on age, ethnicity, and social class. d. Despite the media publicity over this issue, research studies find no gender differences in self-esteem.
Mental illness results primarily from ____
a. genetic factors b. environmental factors c. sociocultural factors d. an interaction of many factors
The somatic nervous system:
A. consists of nerves connected to either sensory receptors or to voluntary muscles B. regulates heart rate, breathing, blood pressure, and digestion C. controls the fight-or-flight response D. is in a constant state of homeostasis
Learned responses are extinguished when conditioned stimuli are no longer associated with unconditioned stimuli
Indicate whether the statement is true or false