The aim of this article is to introduce readers to an alternative way of applying U-shaped functions to understand development, especially cognitive development. In classical developmental applications, age is the abscissa; that is, in the fundamental equation B = f(A), some behavioral variable (B) plots as a U-shaped or inverted U-shaped function…

The articles in this collection consider one very interesting puzzle of development: U-shaped developmental functions. At some point during development, an organism might exhibit what seems like a regression from its expected developmental trajectory and, according to continuity models of development, this is aberrant. In this special issue,…

The purpose of this review is to discuss the importance of treatment efficacy research in language comprehension in MR/DD populations. Although receptive language deficit is an integral part of most MR/DD typologies, there have been relatively few studies evaluating the effectiveness or efficacy of treatment for this condition. Recently, there has…

This study investigated whether exposing Kindergarten children to metacognitive language results in a greater conceptual understanding of mental states, and increased production and comprehension of metacognitive vocabulary. Over a 4-week period, parents, teachers and graduate assistants read about 70 picture books to each participant (N=48, mean…

Reading has been an extensively studied topic in the Western hemisphere for several decades, and an enormous amount of empirical data has accumulated on various aspects of reading alphabetic writing systems like English. Of late, there has been some interest in the processing of non-alphabetic scripts. However, there is hardly any empirical…

A child with a hearing loss, with or without additional special needs, comes to the processes of reading and writing with unique strengths and challenges. This article presents learning conditions developed by Brian Cambourne which form a framework that parent-professional teams may use to evaluate and/or develop appropriate physical and social…

Although infants show remarkable sensitivity to linguistically relevant phonetic variation in speech, young children sometimes appear not to make use of this sensitivity. Here, children' s knowledge of the sound-forms of familiar words was assessed using a visual fixation task. Dutch 19-month-olds were shown pairs of pictures and heard correct…

This study looks at the syllable onset interval (SOI) patterning in Taiwan Mandarin spontaneous speech and its relationship to discourse and syntactic units. Monologs were elicited by asking readers to tell stories depicted in comic strips and were transcribed and segmented into Discourse Segment Units (Grosz & Sidner, 1986), clauses, and…

Two experiments sought to extend the demonstration of English-learning infants' abilities to segment nouns from fluent speech to a new lexical class: verbs. Moreover, we explored whether two factors previously shown to influence noun segmentation, stress pattern (strong-weak or weak-strong) and type of initial phoneme (consonant or vowel), also…

This longitudinal study including 87 infant-mother dyads examined the relation between infant temperamental attention, maternal encouragement of attention, language, and the effects of gender. At ages 0;4, 0;8, and 1;0, global attention was assessed from Rothbart's (1981) IBQ; manipulative exploration was assessed with the Bayley (1969) IBR; and…

Comprehension of relative clauses was assessed in 10 Hebrew-speaking school-age children with syntactic SLI and in two groups of younger children with normal language development. Comprehension of subject- and object-relatives was assessed using a binary sentence-picture matching task. The findings were that while Hebrew-speaking children with…

Speech directed towards young children ("motherese") is subject to consistent systematic modifications. Recent research suggests that gesture directed towards young children is similarly modified (gesturese). It has been suggested that gesturese supports speech, therefore scaffolding communicative development (the facilitative…

The acquisition of temporal event referencing, encoded by the temporal connectives: then, before, after, when, while, together, until, and since in English, Thai and Lisu was investigated using two acting-out comprehension tasks, a Marble task and a Toy task. Forty children aged 3.6-7.6 years from each language participated. The Marble and Toy…

Appropriate assessment of English language learners with academic struggles remains problematic (Alvarez, 1991). The purpose of this study was to examine the diagnostic practices of a large culturally diverse district in the Southwest. The researchers collected information from the school records of 146 English language learner (ELL) students who…

Purpose: This study examined the usefulness of the Nonword Repetition Test (NRT; C. Dollaghan & T. F. Campbell, 1998) with 4-year-old children and the relationship among the NRT, language, and other aspects of mental processing. Method: The NRT was administered to 64 children at 4 years of age; 44 had a history of typical language development…