This study examined how children and adolescents with Williams syndrome (WS; ages 8 years, 0 months [8;0]-14;5) used referential devices (determiners and pronouns), tense, and connectives to create cohesion in oral narratives based on a storybook compared to typically developing mentally and chronologically age-matched children. WS children used…

Lying is a deliberate attempt to transmit messages that mislead others. Analysis of language behaviors holds great promise as an objective method of detecting deception. The current study reports on the frequency of use and acoustic nature of "um" and "like" during laboratory-elicited lying versus truth-telling. Results obtained using a…

Observation of reticent (N=7) and normal talkative (N=7) kindergarten students with their teachers during classroom "sharing time" indicated that reticent children engaged in less complex speech than their peers, speaking more often about objects in the "here and now," speaking about one topic at a turn, and speaking in shorter…

Samples of the communicative behavior of a group of mildly mentally retarded adults were examined for indications of mature linguistic competence (specifically, grammatical morpheme and complex sentence use).Findings confirmed the expectation that the eventual mastery of these aspects of linguistic competence in higher-level retarded individuals…

Investigation of the use of five speech markers in the native and second-language production of French-English bilinguals (N=10) found no quantitative difference in the frequency of occurrence of speech markers between the high (N=5) and low (N=5) fluency speakers, although high-fluency speakers used more progressive than regressive marker types.…