The study found no significant trends in the change of acoustical durations of stutter- and disfluency-free speech from readings in an adaptation series with four adapting, four nonadapting, and four nonstuttering subjects (all young adults). Findings suggest that adaptation of stuttering and other fluency-inducing conditions are a result of…

Nineteen stutterers provided samples of speech and reading from which scores representing 46 visible-audible phenomena were correlated. (Author)

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,…

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…