In a longitudinal study (Shaw and colleagues, 2006 ) that charted brain development in children with average, high, and superior IQ scores, researchers found that
A) children with superior IQ scores already had thicker cortices than the children in the other groups by age 7.
B) children with superior IQ scores showed a rapid increase in gray matter that continued throughout adolescence.
C) children with average IQ scores showed the least decline in gray matter during adolescence.
D) the difference in growth patterns of gray matter for the three groups was most pronounced in the temporal regions.
Question 2
One difference in boys' and girls' brains during middle childhood is that
A) boys experience greater development in neural networks involved in spatial-visual discrimination.
B) boys experience greater development in neural networks involved in both fine and gross motor movements.
C) girls experience greater development in neural networks involved in gross motor movements.
D) girls' brains are 10 percent larger.
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