Which statement is true about heritability of anxiety disorders?
a. Family studies indicate agoraphobia and panic disorder have hereditary component.
b. Genetic components result in enhanced extinction of conditioned fear responses in those with anxiety disorders.
c. Individuals with the Val66Met allele have increased activity of the vmPFC during extinction.
d. Individuals with the Val66Met allele have decreased activity of the vmPFC during extinction.
Answer: D
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In the United States, what are the laws governing the number of embryos that can be implanted in a mother through in-vitro fertilization?
A maximum of two embryos may be implanted. A maximum of four embryos may be implanted. A maximum of six embryos may be implanted. There is no limit to the number of embryos that may be implanted.
A need that energizes and directs behavior towards some goal is known as a _______
a. cue b. behavior c. motive d. stimulus