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)

Twenty-five male stutterers and 25 male non-stutterers (5-13 years old) matched by age and speaking task, read or recited under normal and 113-, 226-, 306-, 413-, 520-msec. delayed auditory feedback conditions. (Author)

Sixteen adult stutterers were randomly assigned to one of two groups: awareness training plus regulated-breathing or Azrin and Nunn's regulated-breathing method only. Awareness training significantly reduced stuttering compared to the control procedure. But the most significant improvement appeared after introduction of the regulated-breathing…

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)