Perception of Place of Articulation by Children With Cleft Palate and Posterior Placement

Abstract

The aim of this study was to determine if children with repaired cleft palate who demonstrate posterior placement of alveolar targets (e.g., /t h / → [k h ]), known as Group P, differ from children with cleft palate without such an error pattern Group NP) and from normally developing children without cleft palate (Group N) in the perception of /t h / and /k h /. Ten age-matched children in each of these three groups identified 8 synthetic stimuli along an acoustic continuum ranging from /t h / to /k h /. The children with posterior placement performed at random levels, appearing unable to distinguish /t h / from /k h /. In contrast, both groups of children without posterior placement demonstrated a clear identification pattern. These results, which suggest that children with cleft palate and posterior placement have a perceptual deficit, contribute to discussion of the possible etiology of speech deficits in this population.

Palate morphology after unilateral and bilateral cleft lip and palate closure

“…Speech analysis has shown that misarticulations of dental-consonants tended to occur independently of primary palatal surgical technique and timing of palatoplasty and even velopharyngeal function 18 . Additionally, a certain degree of misperception of place of articulation appears to be contributory to the aetiology of speech deficits in cleft patients 23 . On the other hand, OKAZAKI et al 15 have shown that narrower shorter and shallower palates were found particularly in children with misarticulation.…”

A expansão rápida da maxila com haas e a fala na fissura labiopalatina transforame

“…Conflito de interesses: inexistente ressonância e articulação [1][2][3]5,6 . A hipernasalidade caracteriza-se por ressonância nasal de fones orais, causada pelo fechamento incompleto do esfíncter velofaríngeo 1,3,5,7,8 .…”

“…A hipernasalidade caracteriza-se por ressonância nasal de fones orais, causada pelo fechamento incompleto do esfíncter velofaríngeo 1,3,5,7,8 . Fonemas que necessitam de pressão intraoral para serem produzidos, como plosivos e fricativos, ocorrem com emissão nasal, também denominada escape aéreo nasal 1,5,9 .…”

“…A hipernasalidade caracteriza-se por ressonância nasal de fones orais, causada pelo fechamento incompleto do esfíncter velofaríngeo 1,3,5,7,8 . Fonemas que necessitam de pressão intraoral para serem produzidos, como plosivos e fricativos, ocorrem com emissão nasal, também denominada escape aéreo nasal 1,5,9 . Na tentativa de impedir que a corrente aérea seja direcionada para o nariz pela falta de pressão intra-oral 8 , ocorrem movimentos compensatórios 1,3,6,7 , que acabam aumentando justamente o que tentam impedir.…”

Perceptual discrimination across contexts and contrasts in preschool-aged children

“…There is also ample evidence that perception and production are linked in children's phonological acquisition, with a large number of studies reporting that children show specific difficulty discriminating the same contrasts that they neutralize in production (e.g., Hoffman, Daniloff, Bengoa, & Schuckers, 1985; Locke, 1980; McAllister Byun, 2012a; Rvachew & Jamieson, 1989; Velleman, 1988; Whitehill, Francis, & Ching, 2003; Ygual-Fernández & Cervera-Mérida, 2013; but cf. Gierut, 2006).…”