PET imaging has shown that people with impulsive aggression have decreased serotonin activity in the:

a. Prefrontal cortex
b. Anterior cingulate gyrus
c. Hippocampus
d. Periaqueductal gray

A

Psychology

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How long will it take before the pieces of the skull grow together and the fontanels disappear?

a. 6 months b. 12 months c. 18 months d. 24 months

Psychology

When a premature infant with a low birthweight is placed in an incubator, oxygen is carefully monitored because too __________ a concentration of oxygen __________

a) high; can damage the baby's retinas, leading to permanent blindness b) low; can damage the baby's retinas, leading to permanent blindness c) low; can prove fatal for the baby d) high; can prove fatal for the baby

Psychology