Your Text Describes a Study (Castellanos Et Al

Multiple Choice

Your text describes a study (Castellanos et al.,2002) in which MRI was used to scan the brains of children with and without ADHD.Which of the following was true of this study?

A) It was a functional MRI study.
B) The authors compared the volumes of the motor cortices in the two groups.
C) The authors found that children with ADHD showed a reduction in frontal cortex volume compared to children without ADHD.
D) Researchers found no differences in the size of brain regions between the groups, lending more support for an environmental theory of the disorder.