Then the researchers tested how both groups felt about beating. They found that the amusics could hear it and disliked it about as much as the control group. f

Then the researchers tested how both groups felt about beating. They found that the amusics could hear it and disliked it about as much as the control group. followed by: Co-author Josh McDermott at New York University reported previously that harmonicity seems more important than beating for dissonance aversion in normal hearers. In the new paper he and his colleagues argue that the lack of sensitivity both to harmonicity and dissonance in amusics now adds to that case. Am I thick? These paragraphs seem to directly contradict each other (1st says amusics are sensitive to dissonance, 2nd says they are not).