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Characterizing Articulation in Apraxic Speech Using Real-Time Magnetic Resonance Imaging
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Hagedorn, Christina; Proctor, Michael; Goldstein, Louis; Wilson, Stephen M.; Miller, Bruce; Gorno-Tempini, Maria Luisa; Narayanan, Shrikanth S. – Journal of Speech, Language, and Hearing Research, 2017
Purpose: Real-time magnetic resonance imaging (MRI) and accompanying analytical methods are shown to capture and quantify salient aspects of apraxic speech, substantiating and expanding upon evidence provided by clinical observation and acoustic and kinematic data. Analysis of apraxic speech errors within a dynamic systems framework is provided…
Descriptors: Diagnostic Tests, Articulation (Speech), Speech Impairments, Acoustics
Articulation and Noncomprehension Signaling in Adolescent and Adult Males with Down Syndrome and Fragile X Syndrome
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Fedak, Larissa Ann – ProQuest LLC, 2012
The purpose of this study was to determine whether or not decreased articulation of speech played a role in the ability of an individual with Down syndrome or Fragile X syndrome to signal noncomprehension and whether the two groups differed in their levels of articulation of speech and noncomprehension signaling ability. The research was conducted…
Descriptors: Adolescents, Adults, Males, Down Syndrome
Electromyographic Control of a Hands-Free Electrolarynx Using Neck Strap Muscles
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Kubert, Heather L.; Stepp, Cara E.; Zeitels, Steven M.; Gooey, John E.; Walsh, Michael J.; Prakash, S. R.; Hillman, Robert E.; Heaton, James T. – Journal of Communication Disorders, 2009
Three individuals with total laryngectomy were studied for their ability to control a hands-free electrolarynx (EL) using neck surface electromyography (EMG) for on/off and pitch modulation. The laryngectomy surgery of participants was modified to preserve neck strap musculature for EMG-based EL control (EMG-EL), with muscles on one side…
Descriptors: Sentences, Surgery, Biofeedback, Career Development
Breathing-Impaired Speech after Brain Haemorrhage: A Case Study
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Heselwood, Barry – Clinical Linguistics & Phonetics, 2007
Results are presented from an auditory and acoustic analysis of the speech of an adult male with impaired prosody and articulation due to brain haemorrhage. They show marked effects on phonation, speech rate and articulator velocity, and a speech rhythm disrupted by "intrusive" stresses. These effects are discussed in relation to the speaker's…
Descriptors: Articulation (Speech), Brain, Speech Communication, Speech Impairments
Stability of Vowel Articulation by Profoundly Deaf Persons: Variability of Formant Frequencies.
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Katamura, Yuumi; And Others – Japanese Journal of Special Education, 1987
The study examined the stability of vowel articulation for the final vowel in a vowel-consonant-vowel structure by five profoundly deaf and six nonhearing impaired male adults. All deaf subjects showed considerable intra- and interindividual variability. Variability was greatest for center formant frequencies of F1 measured by a Signal Analyzing…
Descriptors: Adults, Articulation (Speech), Articulation Impairments, Deafness
Changes in Consonants and Vowels Produced in the Speech of a Prelingually Deafened Cochlear Implant User.
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Dyson, Alice T.; And Others – Volta Review, 1993
The speech production of a prelingually deafened adult male was examined at 4 intervals: 1 week and again at 9 months postimplant with a single-channel cochlear implant, 14 months later with a nonfunctioning device, and 1 year following implantation with a multichannel device. Consonant accuracy and vowel accuracy changed little across conditions.…
Descriptors: Adults, Articulation (Speech), Assistive Devices (for Disabled), Case Studies