This investigation was concerned with rapid syllable repetitions produced by 120 female Ss ranging from 20 to 80 yr. of age. Rate and periodicity data were obtained from graphic level tracings of tape recordings of the task produced at comfortable pitch and loudness levels. The findings demonstrated that aging was not a significant factor in female Ss ability to repeat syllables rapidly.
30 male and 30 female adults sustained the vowel /a/ under specified conditions. Analysis of the data for 10 trials suggests that four trials produced at a comfortable pitch and loudness level and interrupted by a 60-sec. rest would reliably evaluate prolonged vocalization. Males' superior performance was noted. Clinical applications and research implications are discussed.
The role of Professionals Complementary to Dentistry is increasing in importance as new ways of exploring dental service provision are considered. Skill-mix and team-building are not just buzzwords, but signify the new view of a multidisciplinary approach in healthcare. Since the Nuffield and DARG reports of the last decade urged consideration of manpower issues within dentistry, the ensuing change from often small, single-handed practice, to larger team approaches has resulted in significant changes in service delivery. It is unsurprising that the bewildered practitioner can become lost in the mire of proposed new regulations. Outlining the current developments in the expanding role of PCDs, this paper illustrates the dynamic nature of the changes.
This study investigated the effects of variations of vocal pitch and loudness upon rate and periodicity of rapid syllable repetition. 40 young adult women, who altered vocal pitch and loudness levels according to specified treatment conditions, served as Ss. Pitch and pitch-loudness interaction significantly altered rates of syllable repetition. Ss produced highest rates at comfortable pitch and loudness levels. Periodicity was not affected by changes in the vocal variables.
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