Speech analysis of 10 two- to three-year-olds diagnosed by parents as having begun stuttering and 10 matched normally speaking children indicated that stutterers were three times more disfluent than nonstutterers. Part-word repetitions and sound prolongations were found to distinguish the two groups significantly. (Author/CL)

Electroglottographic (EGG) and acoustic waveforms of the first few glottal pulses of voicing were monitored and voice onset time (VOT) measured during an adaptation task performed by adult stutterers and controls. Fluent utterances of stutterers resembled those of controls. After dysfluencies, however, the EGG signal increased gradually, lending…

A study compared the laryngeal behavior associated with the perceptually fluent speech of 3-to-7-year-old stutterers (N=8) to that of normally fluent peers (N=8). Analysis of electroglottograph readings indicated that normally fluent children exhibited significantly more typical patterns during consonant-vowel and vowel-consonant transitions than…

The study assessed the effect of increasing the difficulty of reading material on the frequency and type of disfluency in the oral reading of 80 normally fluent elementary school children. Results indicated a significant increase in total moments of disfluency and four specific types of disfluency as the difficulty of reading material increased.…

A cross-sectional research study and a longitudinal research study failed to replicate previous research findings that indicated a linear relationship between age and mean length of utterance during the preschool years. Instead, a deceleration in age curves, particularly beyond about 36 months, was observed in each sample. (Author/CB)

Results of two studies with 45 normal three- to five-year-old children indicated that, when the Ss initiated actions with verbal instruction, their use of conjunctions and clause ordering was more effective than in other initiated contexts without a verbal model. (Author/MC)

Disfluency characteristics of 36 nonstuttering boys aged two, four, and six years were analyzed from tape recorded speech samples made during free play within neutral and stress situations. Comparisons of frequency of disfluency were made among the different ages within each situation and between the neutral and stress situations. (Author)

A study compared the eye movements of 16 stutterers and a control group of 16 nonstuttering speakers (mean age of both groups 22.9 years) to determine if eye movements differed. (PHR)

Comparison of the narratives of 16 children with word-finding problems and 16 normal children (grades 1-6) found that children with word-finding disorders did not differ in language productivity but manifested significantly more word-finding characteristics in their narratives. Implications for assessment and intervention are discussed. (Author/DB)

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,…

Stuttered sentences pronounced by 12 4- to 6-year-old children in spontaneous conversation were analyzed for length and grammatical complexity. Results indicated that sentences in which stuttering occurred within the first three words were significantly longer and more complex than sentences where no fluency failure was found. Implications for…

Ninety-eight misarticulating 8 and 9 year-old children participated in a study to determine the correspondence between the classification of measures by clinical judgment and by factor analysis. (Author/MH)

Pressure buildup patterns preceding the onset of phonation were studied in 573 fluent utterances of 10 stutterers and in 552 utterances of 7 controls. Stutterers evidenced deviant patterns of subglottal pressure buildup and abrupt voice onsets more often than did controls; occurrence of jitter and shimmer did not differ significantly. (Author/JDD)

Trade-off effects among linguistic components were compared in 30 elementary school children with deficits in both oral and written language, deficits only in written language, or normal language development. Analysis of syntax, phonology, and fluency indicated group effects, with trade-offs between some linguistic measures and positive…

This study of 20 stuttering and 20 nonstuttering preschool children found that stuttering children scored lower on 7 out of 8 language measures, with no significant intergroup differences on articulation proficiency or fluency. There were few significant correlations between measures of stuttering rate, speaking rate, and language performance…