Speech samples were recorded of typical speech of 10 stutters, 10 stutters speaking without stuttering under delayed auditory feedback (DAF), and 10 nonstutters speaking normally. Results indicated that stutterer samples were judged as sounding significantly more unnatural than nonstutterer samples, and the DAF stutter-free samples sounded…

This study investigated the effect of auditory feedback alterations on stuttering frequency of 10 adults. At high speech rates, stuttering frequency was significantly reduced under delayed auditory feedback, frequency altered feedback, and a combination. There were no significant differences among the altered feedback conditions. (Author/SW)

Fluent speakers and stutterer's increased voice level were analyzed in response to voice-delayed auditory feedback, an Edinburgh masker, and white noise. These results are used to assess auditory feedback monitoring accounts of speech behavior of fluent speakers and stutterers with some implications for the treatment of stuttering. (37 references)…

It was hypothesized that stuttering may be related to impaired sensory gating, leading to overflow of superfluous disturbing auditory feedback and breakdown of the speech sequence. This hypothesis was tested using the "acoustic startle prepulse inhibition" (PPI) paradigm. A group of 22 adults with developmental stuttering were compared…

Models of stuttering and delayed auditory feedback propose that, in these conditions, the rhythmic structure of fluent speech prespecifing the intervals between vowels of stressed syllables is lacking and that auditory perception of vowels of stressed syllables is predicted incorrectly. A model regarding onset of stuttering in children is also…

Twenty-five male stutterers and 25 male non-stutterers (mean age 9 years) read or recited under conditions of normal and delayed auditory feedback to determine the correlation between disfluencies in speech and normal or delayed feedback. (Author/PHR)

An individual free token/response cost system was used to decrease the stuttering of an elementary-level student. Reasons for the effectiveness of this technique may include its provision of immediate feedback, use of visual cues, and simple recordkeeping. (Author/CL)

Reported are five studies on the use of delayed auditory feedback (DAF) with stutterers. The first study indicates that sex differences and age differences in temporal reaction were found when subjects (5-, 7-, 9-, 11-, and 13-years-old) recited a nursery rhyme under DAF and NAF (normal auditory feedback) conditions. The second study is reported…

A series of single-subject experiments evaluated the effects of frequency-altered auditory feedback (FAF) on the speech performance of four adult males who stutter. FAF was compared with normal auditory feedback in oral reading and spontaneous speech. Results indicate no consistencies across subjects in responses to FAF. (Author/CR)

Purpose: To investigate the effect of repeated exposure to delayed auditory feedback (DAF) during a 3-month period outside a clinical environment and with only minimal clinical guidance on speech fluency in people who stutter. Method: A pretest-post-test design was used with repeated exposure to DAF during 3 months as the independent variable.…

The report summarizes a project investigating effects of biofeedback on nine secondary students with speech problems including stuttering, vocal nodules, articulation problems, and cerebral palsy. It is explained that a portable electromyograph was used to give the students immediate visual and/or auditory feedback. Results listed include that Ss…

A time-out from speaking contingency was evaluated in the treatment of stuttering in three school-age children. A red light time-out signal appeared for five seconds when the child stuttered. Two of the children responded to time-out with clear reductions in stuttering. Listeners did not detect any differences between the perceptually stutter-free…

A study investigated the effectiveness of three stuttering treatments (intensive smooth speech, parent-home smooth speech, and intensive electromyography feedback) for 62 students (ages 11 to 18) who stutter after two to six years after treatment. Results indicate treatment gains were maintained and that there were no significant differences among…

The effect of extended, continuous exposure to frequency-altered auditory feedback during an oral reading and monologue task on the stuttering frequency and speech rate of 12 adults was examined. A significant decrease in stuttering events and an increase in number of syllables produced was found for the oral reading task but not for the monologue…

Using comparative speech tasks and EMG recordings to assess the potential of EMG biofeedback-assisted relaxation to reduce stuttering, a preschool child was able to reduce larynegeal tension but not without some difficulty. The small effect of the training was in the direction of less stuttering. (Author/CM)