This study examined the accuracy and stability of oral motor control in 20 adults and 20 children. Although the children were less accurate and less stable, adults and children exhibited similar variability in their generalized motor program. Results are discussed within the framework of a schema model of motor control, especially the strategic…

The study examined whether stutterers (27 children and 19 adults) subvocalize more slowly than nonstutterers and need more time for overt fluent speech production. Results indicated that a strictly motoric explanation of stuttering is inadequate as stutterers and nonstutterers differ in temporal parameters not only during speech execution, but…

Examines a variety of metalinguistic tasks in terms of cognitive and linguistic prerequisites to their solutions. Argues that conceptualizing metalinguistic ability as reliance on (1) growth in analysis of knowledge of language and (2) increased control over cognitive operations makes it possible to relate metalinguistic ability to other language…

Two studies with nine children with severe traumatic brain injury (TBI) were conducted. Study 1, focusing on longitudinal changes in speaking rate, found markedly slower speaking rates for five subjects. Study 2, examining possible causes of slowed speaking rate, found that both reduced articulatory speed and increased pausing may contribute…

This case report provides a phonological investigation of the speech of an eight-year-old autistic boy. Speech was elicited using delayed imitation, object naming, and a connected speech sample. The subject's use of phonological processes resulted in extensive homonymy which contributed to severely reduced intelligibility. Both typical and unusual…

Twenty-two hearing-impaired children (ages 9 to 13) with a hearing loss of 80 dB or greater completed 3 tasks of intonation perception and production. Acoustic analysis suggested a relationship between imitation and discrimination of intonation contours and a relationship between imitation and production of orally read sentences when a rising…

Seventeen children (ages 6-11) with developmental apraxia of speech were administered tests of identification and discrimination of resynthesized and synthesized monosyllabic words differing in place of articulation of the initial voiced stop consonants and intensity of the third formant. Results indicated no phonetic processing deficit in…

This study compared speech and language comprehension and production between 249 very low birthweight and 363 normal birthweight 8 year olds. Although low birthweight children tended to score lower, when those with major neurological abnormalities were excluded, no significant differences were found between the two groups. However, general…