For the first time, scientists have identified a gene that appears to influence the development of at least some cases of dyslexia. This learning disorder is characterized by difficulties in perceiving sounds within words, spelling and reading problems, and troubles with written and oral expression. It's estimated that dyslexia affects at least 1 in 25 people. Although scientists are investigating dyslexia's suspected neural roots (SN: 5/24/03, p. 324: http://www.sciencenews.org/20030524/fob4.asp), the condition's causes remain unknown. If confirmed in further studies, the new genetic finding represents a major step forward for dyslexia researchers. Until now, investigators have only been able to link...