Rate and timing precision of motor coordination in developmental dyslexia.

Learning to read builds on the speech processes of the child at many levels (Denckla, 1979; Mann, 1986), and language impairment is one of the most common behavioral correlates of developmental dyslexia (Doehring, Trites, Patel, & Fiedorowicz, 1981; Jorm, 1979; Vellutino, 1978). Current dyslexia research therefore has emphasized the linguistic analysis of language deficits and has brought converging evidence to the effect that phonological processing deficits, for example, play a critical role in reading impairment (Mann, 1986; Wagner & Torgensen, 1987).