Analysis of spontaneous language samples of six children (two to four years old) at three linguistic ages (defined by mean length of utterance in morphemes) replicated the proposed semantic ordering of question types. However, a stage characterized by uninverted forms was not supported. (CL)

The influence of referent type (Objects vs. Actions) and within-category referent relationships (functionally similar vs. perceptually similar) upon acquisition of lexical concepts by 12 infants were examined. Ss acquired object words and concepts in greater numbers than action words and concepts, suggestive of differences in the underlying…

The phonological systems of 40 functional misarticulators, ages 40-80 months, were examined in terms of the nature and variation of phonetic inventories and phonotactic constraints. Evidence suggests that these properties of disordered systems represent delays in the normal acquisition process and are not otherwise deviant. (Author/JDD)

This preliminary investigation of stuttering development and maturation of speech motor processes recorded the electromyographic activity of the orofacial muscles of nine children who stuttered. Results suggest that the emergence of tremor-like instabilities in the speech motor processes of stuttering children may coincide with aspects of general…

The study examined the spontaneous imitations produced by four Stage-1 preschool Down's syndrome children. The imitation speech of the children was compared to their spontaneous productions to determine whether words imitated are different from those produced spontaneously. (Author)

This study compared early vocal productions of preschool children with severe-profound hearing loss recorded with and without the use of a tactual device (Tactaid II). Their vocalizations are described in a hierarchical manner utilizing a three-tiered analysis that identifies "speech-like" vocalizations and transcribes those…

This examination of the auditory perceptual abilities of 40 children, ages 4-10, and 10 adults found significant differences between the performances of the 4- to 8-year olds and of the adults. Acquisition of adultlike duration discrimination performance was demonstrated between the ages of 8 and 10 years. (Author/JDD)

Responses to sound were observed in two groups of children (one developmentally normal, the other older but profoundly multihandicapped). Results showed no significant differences between groups. In both groups, however, responsiveness was dependent on hearing level and bandwidth but not on meaningfulness. Results support the practice of…

Three children were observed in their homes approximately once a month for one year, from their 11th through 22nd month of life. Based on observation of the children's changing nonverbal behaviors, a five-level developmental sequence documenting the evolution of the cognitive notion of agent was developed. (Author)

Thirty children (aged 4-10) and 10 adults repeated 2 target syllables, which were analyzed acoustically to evaluate development of identification and discrimination in children for the vowel duration cue to final consonant voicing. Results showed that category boundary, category separation, response consistency, and perceptual consistency…

Production of grammatical morphemes was examined in free speech samples from 34 4-year-olds with history of slow expressive language development (SELD) and control group. Both the SELD children who had caught up in mean length of utterance by age four and those who had not had acquired fewer grammatical morphemes than controls, though acquisition…

Data on intentional communication by 15 normal children (ages 11-14 months at outset) were collected at three stages (prelinguistic, one-word, multiword) over the course of a year. All displayed acts for regulating behavior, engaging in social interaction, and referencing joint attention at each stage but with changing proportions. (Author/VW)

A study of children who stutter (n=12), who have recovered early from stuttering (n=12), and who recovered later from stuttering (n=12) compared the phonological characteristics of the three groups with a control group. Results indicated that poor phonological ability in the early stage of stuttering appeared to be a contributing factor to the…

The relationship between early language and cognition was studied in 20 children between 1 and 2 years of age. Four cognitive areas were tested: object permanence, means-end, play, and imitation. Results indicated that specific cognitive skills seem temporarily associated with some linguistic abilities, although attainment of skills can be…

The study (with eight adults and eight children at each of the ages three, four, five and seven years) found that children initially organize their speech gestures over a domain at least the size of the syllable and only gradually differentiate the syllable into patterns of gestures more closely aligned with its perceived segmental components.…