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Surface hypothesis SLI

Johanne Paradis, Mabel L Rice, Martha Crago, Janet Marquis
This study reports on a comparison of the use and knowledge of tense-marking morphemes in English by first language (L1), second language (L2) and specifically language-impaired (SLI) children. The objective of our research was to ascertain whether the L2 children's tense acquisition patterns were similar or dissimilar to those of the L1 and SLI groups, and whether they would fit an (Extended) Optional Infinitive profile, or an L2-based profile, e.g., the Missing Surface Inflection Hypothesis. Results showed that the L2 children had a unique profile compared with their monolingual peers, which was better characterized by the Missing Surface Inflection Hypothesis...
2008: Applied Psycholinguistics
Monica Sanz-Torrent, Elisabet Serrat, Llorenc Andreu, Miquel Serra
In this article we examine language processing and development in Catalan or Spanish-speaking children with SLI, focusing on the study of the verb. We analyse the key initial phase of its process of acquisition and aim to define common features of the SLI group that distinguish them from children with normal language development. We intend to identify more precisely the kind of delay shown by these children in a language with a rich verb morphology, in terms of both structure and chronology. The sample comprised 18 Catalan-Spanish bilingual pre-school children, assigned to three groups of six; an SLI group and two control groups, one matched for age and the other matched for MLU-w...
June 2008: Clinical Linguistics & Phonetics
Eva Aguilar-Mediavilla, Mònica Sanz-Torrent, Miquel Serra-Raventós
BACKGROUND: The profiles of children with Specific Language Impairment (SLI) differ greatly according to the language they speak. The Surface Hypothesis attempts to explain these differences through the theory that children with SLI will incorrectly produce elements in their language with low phonological weights or that are produced in a non-canonical prosodic structure. AIMS: Previous studies have shown that the most characteristics errors produced by Catalan and Spanish-speaking children with SLI include function word omission (morpho-syntax) and weak syllable omission (phonology)...
May 2007: International Journal of Language & Communication Disorders
Eva M Aguilar-Mediavilla, Mònica Sanz-Torrent, Miquel Serra-Raventos
The phonology of two groups of SLI (n = 5) and LD (n = 5) children was analysed at age 3 and compared with two control groups: an age control (n = 5) and a language level control (measured using the MLU-W) (n = 5). Children with SLI and LD showed a delay in the acquisition of segments, syllabic structures and word structures, and in the simplification processes, compared with their age control group. However, SLI children also displayed significant differences vis-à-vis their language level controls, mainly in early acquisitions: vowels, nasals and stops at the segmental level, and in CV structures at the syllabic level...
December 2002: Clinical Linguistics & Phonetics
M L Rice, J B Oetting
Three accounts of the grammatical deficits of children with specific language impairment (SLI), that is, Missing Feature, Surface Account, and Missing Agreement, were evaluated by examining children with SLI and language-matched non-SLI children's acquisition of number marking and number agreement. The data consisted of spontaneous language transcripts from 108 preschool children. Number marking was evaluated using five indices of plural development: percent of use in obligatory contexts, lexical productivity, selectivity, contrastivity, and morphological productivity...
December 1993: Journal of Speech and Hearing Research
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