A companion paper describes three extensions to a classification system for paediatric speech sound disorders termed the Speech Disorders Classification System (SDCS). The SDCS uses perceptual and acoustic data reduction methods to obtain information on a speaker's speech, prosody, and voice. The present paper provides reliability estimates for…

This report describes three extensions to a classification system for paediatric speech sound disorders termed the Speech Disorders Classification System (SDCS). Part I describes a classification extension to the SDCS to differentiate motor speech disorders from speech delay and to differentiate among three sub-types of motor speech disorders.…

This study compared the speech and prosody-voice profiles for 30 male speakers with either high-functioning autism (HFA) or Asperger syndrome (AS), and 53 typically developing male speakers. Both HFA and AS groups had more residual articulation distortion errors and utterances coded as inappropriate for phrasing, stress, and resonance. AS speakers…

Analysis of speech samples of 40 noninstitutionalized persons (ages 20-50) with mental retardation found that speech and prosody status were not statistically associated with gender or gross level of mental retardation but were associated with estimated probability of independent living. The existence of a cognitive capacity constraint and a…

Shriberg "et al." [Shriberg, L. "et al." (2001). "Journal of Speech, Language and Hearing Research, 44," 1097-1115] described prosody-voice features of 30 high functioning speakers with autistic spectrum disorder (ASD) compared to age-matched control speakers. The present study reports additional information on the speakers with ASD, including…

Purpose: The primary goal of this case study was to describe the speech, prosody, and voice characteristics of a mother and daughter with a breakpoint in a balanced 7;13 chromosomal translocation that disrupted the transcription gene, "FOXP2" (cf. J. B. Tomblin et al., 2005). As with affected members of the widely cited KE family, whose…

This study provides a clinical profile of 178 children (ages 3-6) with developmental phonological disorders, based on prior reports and new data on 64 children. Data discussed include gender, age, and severity; speech profiles; prosody-voice profiles; causal-correlates profiles; and a prevalence profile. (Author/JDD)

Ten preschool children with developmental phonological disorders were followed for seven years. Analyses characterize the sequence, rates, and error patterns of long-term speech-sound normalization in relation to developmental perspectives. Findings support the hypothesis of a critical period for speech-sound development, with long-term…

A conceptual framework for short-term and long-term speech-sound normalization research is presented, and 1-year normalization outcomes for the 54 children described in EC 609 708 are reported. Although certain individual speech variables were significantly associated with normalization, there were no speech, prosody-voice, or risk-factor…