The study summarized in this paper deals with the grammatical analysis of the spontaneous speech of approximately 150 children who are classified as mentally disabled; educable (I.Q. range 50-80). The performance of these mentally disadvantaged children is compared with the performance of 200 normally developing children by using a clinical…

This paper is a report of two studies of the relationship between intonation and syntax. An analysis of intonation was used to decide whether the pivot-like two-morpheme constructions of a one- and one-half-year-old girl were single lexical items or two separate lexical items. Further, the intonation contours connected with her linguistically…

Research is being conducted to determine the factors behind linguistic retardation in children. A first question raised was whether the linguistic system of the deviant child is qualitatively different from that of a normal child. A matching-up of deviant and normal children according to linguistic level suggests that the onset of base syntax may…

The diagnostic problem presented by children without obvious neurological, cognitive, genetic, emotional or environmental basis for their atypical or delayed language development is discussed. One unresolved issue is whether the deficits of such dysphasic children are linguistic or are more fundamental cognitive or perceptuomotor deficits. A…

A study was conducted to analyze the language behavior of mothers of children with normal language development and mothers of children with delayed language development as they interacted with their children to determine if the two groups of mothers provided different linguistic inputs for their children. Two randomly selected groups of children…

This paper describes the results of two studies of auditory processing in child aphasia, and their implication for understanding deviant language development. The term "aphasia" is discussed as it is used to describe adult and child language disorders. A first experiment on the auditory functioning in aphasic and nonaphasic children suggests that…

This study used several measures to compare 40 toddlers with delays in expressive language and 40 children acquiring language normally. Findings indicated that children with small expressive vocabularies at 2 years of age are not different from their normally speaking peers in terms of hearing, history of ear infections, birth order, or pre- or…

The study sought to identify effective procedures for facilitating initial imitative vocal behavior in mentally retarded children, thus accelerating the initial stages of language acquisition. Three groups of Down syndrome children ages 6 months to 4 years (N=15) served as subjects in an examination of the relative effectiveness of three…

The syndrome of childhood autism is typified by major abnormalities in language development, yet there are few systematic descriptions of autistic children's linguistic systems. This paper represents the beginning of a comprehensive investigation of the language of verbal autistic children and concentrates on comparing the syntax used by ten…

Toddlers with slow expressive language development were compared on three global measures of phonological behavior to age-mates with normal speech development. The measures were the average level of complexity of syllable structures, the number of different consonant phonemes produced, and the percentage of consonants correctly produced in…

This paper is concerned with the Aristotelian notion of "universal" as applied to phonological phenomena. It is claimed that speech production in children and adults, in normal and deviant speakers, and in a variety of languages, can all be described according to the same universal phonological rules which constitute the universal process of…