This paper discusses the speech monitoring process that underlies overt self-repairing of speech errors; the covert repair hypothesis, dealing particularly with explaining the variety of disfluency types from a restricted set of repair principles; quantitative and qualitative characteristics of disfluency in people who stutter; and the covert…

Comparison of the speech fluency and phonology of 18 boys (mean age 61 months) who stuttered and demonstrated either normal or disordered phonology found that the two groups were generally similar in terms of their basic speech disfluency, nonsystematic speech error, and self-repair behaviors. Predictions of the covert repair hypothesis of…

Cluster analysis procedures used in a study of 43 stutterers (ages 3-9) identified 14 associated speech and nonspeech behaviors and speech disfluency types, three related indices (sound prolongation, nonspeech behavior, behavioral variety), and five clusters of young stutterers. Behavioral differences reflected differences in the youngsters'…

Twelve preschool nonstutterers and their mothers were matched with 12 stutterers and their mothers. Analysis of intervention demonstrated that mothers of stutterers talked significantly faster to all children. Stutterers spoke slower than nonstutterers and severe stutterers spoke slower than moderate stutterers. Results revealed an interactive and…

Syntactic analysis (kernel and matrix sentence frame types and transformational usage) of speech of fluent and disfluent preschool children revealed the fluent group using more double-base transformations and both groups comparable on the distribution of usage for sentence frame types. (Author/KW)

Experimental studies are reviewed in which stuttering and speech disfluency were subjected to response contingent stimuli (RCS). Research issues are discussed, including response-stimulus contiguity, subject awareness, behavior definitions, stimulus control of responses, subject variability, effects of RCS on nonstuttered speech parameters,…

Four experienced stuttering researchers viewed videodisks of spontaneous speech from chronic stutterers and attempted to locate the precise onset and offset of individual stuttering events. Results showed interjudge disagreements that challenge the reliability and validity of onset and offset judgments. Highly agreed stuttering events were…

Two operant speech treatment programs for establishing fluent speech--Delayed Auditory Feedback and Gradual Increase in Length and Complexity of Utterance--were compared, with 24 elementary-secondary level students. Both programs produced important improvement in fluency in a reasonable time period and resulted in similar levels of transfer and…

The occurrence of stuttering on stress-peak and unstressed syllables in connected speech was studied in 10 young adult stutterers. Results showed a significant coincidence of stutter events and syllabic stress peaks, particularly in polysyllabic words, though stuttering on the first three words of principal clauses appeared independent of syllabic…

Testing of 17 adult and 25 adolescent stutterers during a 12-month to 24-month postintensive treatment phase revealed that 69% of subjects maintained satisfactory fluency on surprise phone calls at home/work and 80% of subjects rated their speech fluency as good or fair on the Speech Performance Questionnaire. (Author/JDD)

This study compared 24 adult stutterers and 24 nonstutterers for response initiation and completion times on manual task conditions varying as to decision complexity. It was concluded that response planning and organization deficits in stutterers are independent of decision complexity but related to spatial and temporal coordination. (Author/DB)