Christopher S Gaskill

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Phonation into narrow tubes or straws has been used as a voice training and voice therapy technique and belongs to a group of techniques known as semi-occluded vocal tract exercises. The use of what are called resonance tubes has received renewed attention in the voice research literature, in both theoretical and empirical studies. The assumption is that(More)
The use of hard-walled narrow tubes, often called resonance tubes, for the purpose of voice therapy and voice training has a historical precedent and some theoretical support, but the mechanism of any potential benefit from the application of this technique is not well understood. Fifteen vocally untrained male participants produced a series of spoken /a/(More)
The use of lip trills has been advocated for both vocal habilitation and rehabilitation. A voiced lip trill requires continuous vibration of the lips while simultaneously maintaining phonation. The mechanism of any effects of a lip trill on vocal fold vibration is still unknown. While other techniques that either constrict or artificially lengthen the vocal(More)
To date, no study has measured the effects of peer-mediated intervention (PMI) on autism symptoms in children under than four years of age. The current study examines the efficacy of social communication skills of young children diagnosed with autism. The investigator paired three typically developing children (ages 3-5 years) each with a young child with(More)
OBJECTIVE/HYPOTHESIS This study investigated whether listener's experience, presence/absence of vibrato, formant frequency difference, or onset delay affect the ability of experienced and inexperienced listeners to segregate complex vocal stimuli. STUDY DESIGN Repeated measures factorial design. METHODS Two sets of stimuli were constructed: one with no(More)
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