Respirometric quotients (RQ), the ratio of oral air volume expended to total volume expended, were obtained from the productions of oral and nasal airflow of 10 speakers with cleft palate, with and without their prosthetic appliances, and 10 normal speakers. Cleft palate speakers without their appliances exhibited the lowest RQ values. (Author/DB)

Five men repeated a phrase, beginning at total lung capacity and ending at residual volume. Analysis indicated that voice onset time (VOT) was longer at high lung volumes and shorter at low lung volumes. Lung volume should, therefore, be considered when using VOT as an index of laryngeal behavior in healthy and speech-disordered individuals.…

Twenty adult male nonstutterers became more fluent when pacing their speech with a metronome. The degree to which they became more fluent was within the range which has been reported for stutterers. This finding suggests that the effect of the metronome on stuttering is not primarily a result of distraction. (Author/KW)

Occurrence of residual stutterings on adjacent words caused by blotting out words at random in a reading passage was studied. (KW)

Stutterers were found to have a significantly greater number of pauses 150 to 250 msec long than nonstutterers, indicating that even the fluent speech of stutterers differs from normal speech. (Author/KW)

Mean fundamental frequencies of 33 male and female Ss (ages 18 to 42) obtained with FLORIDA I (another method to determine fundamental frequencies) and a tape striation counting procedure were compared. The fundamental frequencies obtained with these two methods were similar and it appears that the tape striation counting procedure is a viable,…

The study comparing perceptual judgments of speech disfluency by 20 mothers of either stuttering or normally fluent children found no appreciable differences between groups in their judgments. Both groups of mothers most frequently judged sound/syllable repetitions to be stuttered, followed by whole-word repetitions and broken words. (Author/DB)

This study, involving 20 adults, introduced a relative target method to examine the fine force control characteristics of the lips. Load equalization for each lip was accomplished by establishing four submaximal target levels related to maximum voluntary closing force. The upper lip was found to be more stable in controlling force at all levels.…