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…

The results indicated that the visual feedback was used very effectively by five of the 12 Ss in reducing their excessively nasal voice quality, and somewhat effectively by four others. (Author/DLS)

Investigated with a 26-year-old male graduate student were the immediate and long-term effects of social reinforcement and feedback on the incidence of stuttering. The S's speech dysfluencies were recorded under baseline and intervention conditions in three settings: two classes the S taught and a weekly hour-long conversation period with peers.…

To determine the effect of videotape self-confrontation as a training device for speech clinicians, 30 students participated in a 12 month study. Ten experimental subjects were assigned to single confrontation, 10 to double confrontation, and 10 were control subjects. Each confrontation subject used a therapy matrix and scored his therapy session…

Several experiments that manipulate stuttering by the use of delayed auditory feedback (DAF) and the prolongation of speech are reported. In a study on six severe stutterers (aged 15 to 47), self monitoring as a source of reinforcement in the use of DAF reduced stuttering frequency. Stuttering frequency was investigated with six severe stutterers…

A survey of research and experimentation in the field of stuttering is presented for those engaged in teaching or studying speech therapy, speech pathology, and psychology. The background to stuttering is discussed as are definition, diagnosis, and measurement. The perceptual, organic, perseverative, expectancy, diagnosogenic, and conflict…