Mirror writing in right-handers and in left-handers

To determine whether normal left-handers were more adept than were normal right-handers at mirror writing, we tested right-handers and left-handers for their ability to mirror write. Independent of hand used, left-handers wrote mirror words (but not normal words) faster than did right-handers, which suggest that left-handers may be better able to reverse directions (left leads to right to right leads to left). Although when using their preferred hand, left-handers made fewer errors than did right-handers (using their preferred hand), the left hand both in right- and in left-handers was superior to the right hand. That the left hand was superior to the right is compatible with the hypothesis either that the right hemisphere contains mirror engrams or that movements away from the body are more accurate than movements toward the body or both.