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.

Question

Quizplus · Accepted Answer

The study found that children with ADHD showed a reduction in frontal cortex volume compared to children without ADHD. This is consistent with previous research suggesting that the frontal cortex is involved in attention and impulse control. A and D are incorrect because the study did not use functional MRI and did find differences in brain volumes between the groups, respectively. B is incorrect because the study did not specifically compare the volumes of the motor cortices.

Your Text Describes a Study (Castellanos Et Al