What do the results from the study of twins who served in Vietnam suggest in regard to the biological factors in the cause of PTSD?

a. Genetic factors account for little in PTSD.
b. Level of exposure did not predict PTSD symptoms.
c. Genetic factors were most significant in accounting for arousal/anxiety symptoms.
d. Individual risk of exposure to trauma was not affected by genetic influences.

Answer: c.

Psychology

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The parietal lobes are at the sides of the brain, just above the ears and behind the temples

Indicate whether this statement is true or false.

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Which gland in the body signals the brain and other glands in children's bodies to begin producing sex hormones?

a) testicles b) ovaries c) pituitary d) hypothalamus

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