Other researchers did not examine brain tissue. Instead, they measured the brains electrical activity and made a map of the electrical signals.
Frank Dully experimented with this technique at Childrens Hospital Medical Center in Boston. Doctor Dully found large differences in the brain activity of normal children and those with reading problems. The differences appeared throughout the brain. Doctor Duffy said his research is evidence that disabilities involve damage to a wide area of the brain, not just the left side.
41 Which of the following is NOT mentioned in the passage? _________.
A Learning disabilities may result from the unknown area of the brain.
B Learning disabilities may result from damage to a wide area of the brain.
C Learning disabilities may result from abnormal organization of the brain cells.
D Learning disabilities may result from problems in the left side of the brain.
42 Scientists found that the brain cells of a learning-disabled person differ from those of a normal person in _________.
A structure and function
B color and function
C size and arrangement
D color and arrangement
43 All of the following statements are TRUE except that _________.
A many factors account for learning disorder
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