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The Role of the SLP and Assistive Technology in Life Care Planning
Published in Roger O. Weed, Debra E. Berens, Life Care Planning and Case Management Handbook, 2018
Research has shown that biofeedback will help people with acquired apraxia of speech to improve their motor planning abilities. Acquired apraxia of speech is a motor speech disorder in which the messages from the brain to the mouth are disrupted and the person cannot move his or her lips or tongue to the right place to say sounds correctly, even though the muscles are not weak. The severity of apraxia depends on the nature of the brain damage, and apraxia can occur in conjunction with dysarthria (muscle weakness affecting speech production) or aphasia (language difficulties related to neurological damage). Apraxia is known as acquired apraxia of speech, verbal apraxia, and dyspraxia. Electropalatography (EPG) appears to be a promising treatment tool for people with this disorder (Kuruvilla et al., 2008).
Effectiveness of non-auditory verbal therapies in improving speech production in school-aged hearing-impaired children: A critically appraised topic
Published in Evidence-Based Communication Assessment and Intervention, 2019
Sarahlouise White, Ivy Zhai, Claire McMinn
Following detailed examination, the remaining 12 articles were organized around three distinct interventions: (a) Computer-based interventions: one systematic review of computer-based interventions, one electropalatography narrative review, and eight electropalatography pre-experimental design studies; (b) core vocabulary: one single group pre-test/post-test design with multiple pre and post-tests involving four participants; (c) visual phonics: 1 one-shot pretest-posttest group design study with one participant. In order to fully address the PICO question, it was deemed important that at least one article be included for each available intervention. This meant considering the available article for core vocabulary and visual phonics and the highest level evidence computer-based interventions.
Voice source, formant frequencies and vocal tract shape in overtone singing. A case study
Published in Logopedics Phoniatrics Vocology, 2023
Johan Sundberg, Björn Lindblom, Anna-Maria Hefele
An article by Granqvist and colleagues [22] reports relevant data on subapical volumes for dental and retroflex stops. This study employed electropalatography, described in detail in the article, to determine place of articulation. The tongue’s contact on the palate was sampled every 10 msec. Volumes were estimated from the front cavity resonance. To increase the accuracy of those measurements, pulse excitation of the front cavity was added and recorded with the speech signal. The excitation signal was a pulse, 50 Hz repetition rate, obtained from an earphone and attached to a thin, 5 cm long, plastic tube, the resonances of which were compensated for by inverse filtering the input excitation signal. The tube’s open end was placed in the subject’s front cavity. The audio signal picked up by a microphone a few centimeters in front of the subject’s lips contained both the subject’s voice and the front cavity’s response to the pulse signal excitation. The female subject sealed her lips around a brass tube and held it firmly against her teeth. To keep the jaw position constant, it was fixed by a 5 mm bite-block placed between the first molars. On the assumption of the system behaving as a Helmholtz resonator, the investigators were able to make estimates of the volume of the front cavity; the procedure with constant area and length of the lip tube allowed accurate determination of the frequency of the front cavity resonance for each time sample. The results showed that the front cavity volumes, ranging between 2 cm3 and 11 cm3, varied with the place of articulation along approximately straight lines.